Chapter 5



Izuki Nishiyama is the 5th chapter of the Our Blood Oath manga series.

Summary
The chapter begins with Izuki Nishiyama and his family are all watching a romantic movie together. Izuki then gets up from sitting on the couch with his family in the living room, saying that he has homework to do. Then Kyoka, who was sitting next to him on the couch says that she wants his help with her math assignment. Izuki and Kyoka stare at each other and they both walk to Kyoka's room. When the door closes, Izuki tells Kyoka to let "her" go. He exclaims that Kyoka said she would release Izuki's sister if he helped her make contact with the Hizuki brothers, but Kyoka denies his demand and she dissolves into a whole parade of bats andsays that there is more for him to do than just that. Izuki shouts that it isn't fair, and Kyoka demands that Izuki kill Shin because he will be an obstacle in capturing Ko. Izuki deniesher demand but us then shown video feed of his sister tied to a chair unable to escape. Kyoka then asks him if he really wants to save his sister or not and asks if his friend is more important. She then says, "You know the right choice, 'big brother.'"

We then transition to Shin at school and Izuki approaches Shin at the end of class and asks if he has a moment to talk. They both go on to the roof where Izuki hands Shin a bag full of pastries from the cafeteria. Shin then asks what Izuki really wants to talk about and Izuki says, "Let's say that your brother Ko suddenly got abducted... What would you do?"

We then transition to Ko waiting outside of his school holding Saburo in his arms as he waits for Shin, wondering where he is. Shin then appears to Ko and starts to walk him home.

Back at Shins high school again and he says that he would obviously go and rescue Ko if he were abducted. Izuki then understands Shins answer and he pulls out a knife and stabs him in the stomach. Izuki then tells Shin that he's been a very good friend but he needs to rescue his sister and he says that Shin must know how he feels better than anyone.

Back to Ko, Shin's impostor is walking Ko on a different path than what the usual way back home is. The impostor then tells Ko that it's just a little detour, and Saburo then jumps out of Ko's arms and slashes the impostors back, making him bleed profusely. The impostor then turns into a horde of bats and then it is revealed that Shins impostor was in fact Kyoka who was here to abduct Ko. Kyoka tells Ko to just come with her quitly and without a fight and Ko shouts that Kyoka is not on his side just because she's a Vampire. She then goes to slash at Ko but he deflects it with his own weaponized blood.

Back to Shin and Izuki, Shin is not dead and is still standing, his bleeding already stopped. Izuki starts to panic at this fat and Shin begins to tell Izuki that he's been worried about him lately and thought that Izuki was finally going to tell him what was really going on. Izuki then shots asking why Shin is smiling. He stabbed him yet he's smiling and he can't even get slightly mad with him. Izuki then explains that Kyoka has held his sister prisoner for the last month and that she keeps ordering him around and he complies to get his sister back, but he says that Kyoka is really after Ko. Shin then quickly pulls out a bag of fur and drips his blood onto it, which creates a mini version of Saburo that will help lead them to rescue Ko and Izuki's sister, and the chapter ends with them heading off to do just that.