Yahiro Mizuchi

Yahiro Mizuch（みずち やひろ), is one of the three main protagonists of Durarara!!'s second part, Durarara!! SH.

Durarara!! SH:
As the story begins, Yahiro is riding on the Yamanote line, reminiscing about his past, when he overhears some passengers beside him talk about the "Headless Rider." This slowly begins to interest him. As he gets off the train, he is greeted by Saburo's brother, Jiro, who then begins to explain that Saburo has seemed more human, since "chasing after" Ruri Hijiribe. He then goes on the explain about Kadota, and the city, while Yahiro listens on.

Later on, he is listening to the class introductions, when he notices two people: Kotonami Kuon, and Tategami Himeka. After watching Kotonami's introduction, he thinks to himself that his green hair is a trend in Tokyo, but quickly dismisses it. When Himeka's turn comes, he notices that she's really pretty. As his turn name is announced, he goes through the standard introduction, but is quickly perplexed, when asked why he moved from Akita, to Ikebukuro (wanting to keep the reason a secret, because he was afraid he would not make any friends if they knew his past). He then replies that he wishes to see the Headless Rider, and begins to get worried once laughter starts spawning around the classroom, but quickly becomes relieved once her hears the others start talking about it.

As class ends,  he is gazing out of the window, looking at the city, when he feels a strange feeling inside of him, and begins to smile. Suddenly, Himeka, asks him if the answer he gave was a joke, or if he was being serious. After a small exchange, Himeka bluntly tells him not to look for it, that that's a warning. Getting scared, Yahiro instinctively grabs Himeka's collar, and pulls her back, choking her, and asking her what she meant. Realizing what he did, he let's go, and begins to apologize. Himeka stares at him in disbelief, but then apologizes while leaving the room, stating that she honestly meant for it to be a warning.

As he is leaving the school, he ponders whether he should apologize to Himeka once again, but is quickly cut off by Kuon, who calls his name. Kuon then goes on to talk about the clubs at school, and other random things, before telling him to call him by his first name, "Kuon," since he did the same with Yahiro. The two then leave, and arrive at the dojo, where Mairu is training. Kuon and Mairu begin talking, and Yahiro gets dragged into the conversation. This is also the first time that Yahiro hears Aoba being mentioned. Immediately after the Aoba conversation, Akane Awakusu walks over, and joins in, stating that the Headless Rider would not kidnap anyone. When asked by Yahiro how she knows such a fact, she remains quiet.

Appearance
Yahiro appears to be around 14-15 years of age, with ice-blue eyes, and light blue hair. He wears a black, button-up blazer, with a white undershirt, complete with a black tie. His bangs are swept out of his eyes, framing both sides of his face. His hair is a little messy, standing up a little bit on top.

Background
As a child, he was treated as a monster. After hearing about the "Headless Rider,(Celty Sturluson)" he moved from Akita to Ikebukuro in hopes of seeing it.

Trivia

 * On the official illustration spread for Durarara!! SH, on Dengeki Bunko's site, it shows him talking to his friend, Kotonami Kuon, with a curious look on his face. Beside it, however, he is shown speaking to someone (who, from behind, has a striking resemblance to Mikado Ryūgamine), with a mischeavious smirk on his face. This could indicate he has a personality like Aoba Kuronuma, or Mikado.