Choujin X (Manga) Vol 01 (Mature)

Best friends Tokio and Azuma do everything together, even if most of the time it feels like Tokio is just stumbling along in Azuma's cooler, more talented footsteps. But when they're attacked one night by a superhuman mutant called a choujin, Tokio finally has a chance to shine-by turning into a choujin himself! For older teen audiences. Viz Media Llc
(W) Sui Ishida