Shide

Shide (シデ, Shide) is a mysterious and unique Shadow. He serves Haine and wants to help her revive her. According to Heine, he is greed incarnate. He is also known as the four armed shadow or initially though to be a shadow parent by Hizuru. His real name is Shidehiko Hishigata, who married Haine and took her surname Karikiri. As their child was actually a clone of him, he made Haine transfers his personality and memories into him and kept getting reborn over and over. Currently he assumes the identity of Masahito Karikiri, a supposed descendant of Shidehiko.

Appearance
Shide has the form of a large tall man with four arms and four eyes. A female-like upper body is able to split from his top half, mostly when he attempts to shoot with his rifle.

Power & Abilities
Shide is more powerful than other shadows, being faster and stronger than them. Unlike other shadows, his movement can't be stopped by piercing his shadow three times which is likely due to the fact he is not a true shadow but rather a hybrid of human and shadow.

3rd Loop
At the shrine, after Shinpei and Hizuru arrive, Shadow Parent creates a female shadow from itself, who points a gun at Hizuru, but seeing a glimpse of the future, she manages to dodge the shot. Shadow Parent grabs Shinpei, and looking at its right eye, he realizes it must be the eye their Mother lost long ago. He wonders why he has it, but states he can control time with it. Shadow Parent states that if a "hero" dies, he can continue from a "save point" until it defeats the "Demon King", and the only way for the Demon King to win is to cut the "electrical power". He then tells Shinpei to observe him as he cuts the power. Shadow Parent consumes all human bodies and offers them as meal and asks their Mother to grant him the last of her strength. Mother then appears floating in the air in a shinning red light. Shadow Parent starts spreading across the island and consume anyone it touches. Shadow Parent attempts to consume Shinpei, but Ushio comes and punches him, giving time for Hizuru to kill Shinpei and send him back in time.

4th Loop
Ryunosuke and Ginjiro enter a cave with sea anemone, which makes Ryunosuke realize they are all shadows. As Shiori appears and knows Ryunosuke's name, Ryunosuke realize this is Haine, who uses Shiori's memories. The shadow parent appears, mentioning its been fourteen years, but he doesn't really have business with Hizuru and wants to know where is the body that stole mother's right eye. Shiori states she read Hizuru and Ryunosuke's mind, but they don't know where the right eye is. The shadow wonders if he can kill them and Shiori confirms. Ginjiro states they should run as they are the ones being hunted and that this isn't a shadow of a human. Shiori warns the shadow that Ryunosuke's shifted, about two seconds ahead. The shadow then shoots at Ryunosuke, but Ginjiro jumps in and takes the bullet. He then proceeds shooting at Ryunosuke, who manages to escape, but also gets shot. Looking at the blood, the shadow states its dark, which means he hit the liver and Ryunosuke won't have much to live. Shiori states that Ushio and Shinpei are with Tokiko and that she is getting hungry and can't wait for 9 o'clock.

When Shinpei was about to shoot at Haine, the shadow parent appears behind him and cuts his fingers and nailgun. He realizes that Haine was about to eat him, but tells her not to do it. He brings Mio and tells her to not eat her as she is an important hostage. Tokiko states they didn't agree on them dragging Mio into this, but the shadow parent states they will all die tomorrow, so it doesn't matter. He shoots at Tokiko, but Sou jumps in and takes the bullet. The shadow parent is surprised, but then shoots again Tokiko and kills her. Haine takes Shinpei's eye, but it returns back to him. The shadow parent states that Shinpei's right eye overlooks the flow of time from a higher dimension and observes multiple parallel worlds. He grabs Shinpei and tells him he has the power to make the world he observes into reality, and right now he is rendering this world. However, he hasn't mastered that power and he is only able to access it when he loses sense of himself in death. So they have to keep him alive until the very end. The shadow parent then crushes Mio's skull, killing her. The shadow intends to keep Shinpei there until tomorrow ends. Shinpei realizes he won't be able to loop and fails his promise.

Tetsu shows up, along with Hizuru, who shoots the shadow parent in the head and frees Shinpei. She then attempts to kill Shinpei, but the shadow creates a shield and protects him, while also shoots and kills Hizuru. The shadow then shoots and kills Tetsu as well. He notes that they almost lost Shinpei, but then sees that Shinpei drank a poison to kill himself. Haine attempts to reprogram Ushio, but Ushio starts turning her corrosion back at her. She tells the shadow parent to kill Ushio, but before he is able to, Shinpei dies and takes Ushio with him, looping them back in time.

5th Loop
The shadow parent goes to Shiori's house and when Ryunosuke attacks, he fights him. He eventually throws Ryunosuke out of the windows and then jumps out and smashes his head. Haine as Shiori reveals that the mark she left on Shinpei allows her to find him and that she can also loop. The shadow parent states they don't need two observers and the surviving one will see the true world. He then attacks Ginjiro, who tries to pin him three times with his nailgun, but that doesn't stop the shadow and he kills Ginjiro. The shadow parent then is about to capture Shinpei, but Ushio cuts Shinpei's head. The shadow attempts to kill Ushio, but she loops back with Shinpei.

6th Loop
Haine loops back in Shiori. Confirming what time it was, and the last times of the loops, she realizes the starting point is getting later. The four armed shadow, The shadow parent - Shide, guesses its because Shinpei's power is waning. Shiori is fine that they keep letting Shinpei loop, as that will give him less and less time, until he reaches his limit, thus they should focus on killing him than keeping him alive. A hour and more later, they go after Shinpei at the elementary school. Mio kills the scouting Ginjiro and Shide takes his rifle, snipping and killing Shinpei from distance.

7th Loop
Haine and Shide arrive with more shadows at the school and find Shinpei outside. They think its a trap, but Shinpei states he just wants to fight fair and square. They send Shadow Mio to kill him, but Ushio appears and they run with Ushio. Haine then orders the shadows to go and kill Shinpei, while Shadow Mio goes to take out Ginjiro, who had started shooting at them. They encounter Hizuru in a corridor, who defends Shinpei and kills all shadows that come after him. Hizuru sees that Shide will shoot Shinpei and takes the bullet, saving him, making Haine note that she knew she would do that as she too has the sight and is able to see two seconds into the future. Shide is about to finish Hizuru, but Ginjiro shoots at them, making Haine wonder what Shadow Mio is doing. Haine then sees Shadow Mio is fighting two stray shadows commanded by Tokiko and is surprised by her betrayal. She tries to order the shadows that Tokiko isn't their master and to kill her, but the shadows don't listen, making her realize that Ushio had severed the connection between them. Angry, Haine merges all shadows into Shide and heads after Ushio.

They reach the gymnasium, where Ushio copies gasoline and Shinpei ignites it. While burning, Haine with Asako jumps at the ceiling, but is shot by Shinpei and injured. Ushio then grabs her and prepares to erase Shiori, but Heine starts begging not to as she wants to take her and her family with her and live with them. Distracted for a moment, gives Shide a chance to grab and pull Ushio into the fire, while also shooting at Shinpei, but purposely missing vital organs, so he dies slowly and after Ushio. However, Ushio reveals to be a dummy and appears behind Shide, punching him and starts to erase him. Haine scans the air in the gymnasium and erases it, putting out the fire and creating vacuum that causes the windows to burst, giving them chance to escape. Haine then asks Shide if he is fine and Shide confirms that he will be able to reconstruct, however, all other shadows have died from the fire.

Shinpei visits Masahito and tells him that he believes the shadow exist and that Masahito was there from the beginning of the Hiruko legend, pointing a gun at him and calling him Shidehiko Hishigata. Shinpei shows him 70 and 40 years old pictures of Masahito and Haine with Masahito and a baby, stating that he is a human-shadow hybrid. As Masahito doesn't deny it, Shinpei eventually feels something is strange and he sees that Masahito doesn't have the burn on the left arm, which Shide received in their last fight. Ushio comes out and kills Masahito, but moments later another Masahito with burnt left arm shows up and stabs Ushio with a spear and then slashes her. Shinpei shoots three times at him, but Masahito turns into Shide, blocking the bullets and throws his spear piercing Shinpei and sending him flying outside the shrine and pinning him to a tree. Shide then tells him that he should have been a bit more objective, but now with Ushio dead, he will loop back only with despair and regret.

8th Loop
At Torajima, Hizuru as Ryunosuke arrives, but recognizes Haine right away. Masahito comes and attacks Ryunosuke, but he easily dodges. Haine explains that she was tormented by eating her friend's brother and expelled part of her self and his data, but there was a slight incident and coordinates in time shifted, so Ryunosuke can control Hizuru from 2 seconds in the future. However, she can see his movements and relay that information to Shide, which removes Ryunosuke's advantage. Masahito reveals a black mud, stating its consist of former shadows and once it comes with contact of his will, it transforms. He turns to Shide and fight Hizuru, but because of the black mud, she can't hurt him. Ryunosuke is looking for a way to escape, but Hizuru refuses and states she has a plan on taking Shide.

Ryunosuke beats up Shide, but he keeps regenerating. Haine wishes to know why Hizuru returned, and recognizing she is displaying Shinpei's personality, Hizuru decides to talk to buy some time. Hizuru explains that she returned for curiosity from the message she got, but saw an opportunity to redeem herself as she blames herself for the death of her brother. Hizuru then tells Haine that Shide has different plans than hers, since in the third loop he said this was his ending, but Shide denies it, stating Hizuru just wants to confuse her. They proceed fighting and knowing that Shide's armor is "nobody", then its an empty void that Ryunosuke can invade. She touches Shide's head and sends Ryunosuke, who then takes over of Shide's armor and creates a shadow of himself. With Masahito exposed, Tokiko then join the fight. As things don't go well, Ginjiro and Tetsu help Tokiko get away, who then informs Shinpei and he restarts the loop.

9th Loop
With the loop restarted, Shide got the fight Hizuru again, but this time knew all of her tricks and easily defeated and stabbed her in the chest with the spear. When Shinpei comes, feeling Ushio from his pocket, Haine decides to retreat with Shide.

Shinpei is inside of Tokiko's stray and is heading towards Ushio in the sea. Shide and other stray are searching everywhere and find the stray that ignores them. They get close to Ushio as she starts to awaken. The stray grabs her and they fly out of the water, where Shide attacks the stray. Ushio and Shinpei start falling and Shinpei gives her the necklace, which starts to shine. Shide attacks them, but Ushio manages to recover her memories and cuts Shide's attacks. Ushio states she knew he will come for her and then kill all the strays that attack them. Ushio attempts to attack Shide, but MIo stops her. Shinpei asks Shide if he can guess from where he came, but as Shide had no idea, Shinpei realizes that being in the stray, the handprint doesn't reveal his location. Shinpei then points a gun at his head and Haine tells Shide to stop him, but using Ryunosuke's powers, Shinpei dodges Shide's gun and shoots himself.

10th Loop
Shinpei loops back with Ushio while the group is still in the stray and go outside. Haine realizes they are in the Hiruko cave and they head towards them. They manage to catch up to them the moment they broke through the black barrier, but Ginjiro stays to fight Shide while the barrier is closing and prevent him from reaching Shinpei.

Shide and Haine later catch up to the group and Shide attacks Ushio, but she defends the group. Haine observes the fight and gives Shide information on how to dodge. She notices that when Shinpei's left eye is closed, she can sense Ryunosuke from him and realizes that he obtained the power to fight them himself. While dodging attacks, Haine sense Mio behind her and dodges again. Feeling the presence of all shadows and its printed objects, Haine then attacks a printed nailgun, but Sou then shoots her from the side. Haine realizes that the printed nailgun was a trap and that Sou uses Ginjiro's original nailgun. Mio then also attacks her and Haine is unable to warn Shide, and he ends up punched and killed by Ushio. However, another Shide then appears. Ushio rushes towards Hiruko and punches it, causing the black mud to fall off from Shide and Mio then stabs him in the head and kills him. Mio expects to disappear, but as she doesn't, she realizes that Haine must be still alive.

Shide reveals to be still alive, however as Hiruko lost her both eyes and had shrunk, Shide states he has no longer use of her. He sees that Ushio had taken Hiruko's eye and realizes his wish can still be granted if he steals it. He can't let Hiruko die as he will loose his armor. He opens a portal to Hiruko's world and jumps in with it, inviting Shinpei and Ushio to come and fight him.

After they go through the portal, he uses Hiruko's memory of the WWII air bombing to recreate it into Hiruko's world, Tokoyo, as her memories are connected to it. He bombs Ushio and her group, but Haine, the little girl's personality is with them and helps them stop the bombing. Ushio then comes and attacks Shide, but realizes he is empty inside. Shide then reflects her hacking and seemingly defeats her, but Ushio eats a fragment of the original Ushio and restores herself to a younger Ushio version. She then reveals to Shinpei that Shide's real body is in the real world. However, due to the injuries, Ushio cannot continue to fight. Shide then faces Shinpei, who is controlled by Ryunosuke and manages to cut his left arm and heavily injure him. Shinpei is still sure of his victory as he still has the eye, which means that eventually Ushio gives it to him. Shide states he just wants to live and had lived for 326 years by swapping bodies. However, as Haine weakened, he feared he lives his last live with Masahito's body. However, few months ago he decided that if he can't live to see the world until its end, he will then end it himself.

Shide proceeds to attack Shinpei, but Shinpei manages to reach the shotgun. Unknown to Shide, Ushio had turned herself into shotgun shells and as Shinpei shoots him, he erases Shide's armor. At the same time, Shide in the real world is too old and cannot move or see without the armor and falls to the ground.