Choujin X (Manga) Vol 04

Azuma has always felt driven to help others, and his need to become a choujin was an extension of that desire. But when he finally turned, it wasn't the victory he dreamed of. Now, rather than fighting side by side with Tokio, he's trying to kill him! Forget repairing their friendship-can Tokio escape their reunion with his life? Viz Media Llc
(W/A/Ca) Sui Ishida