How My Daddies Became Mates manga volume 2 features story and art by Mikkamita.

Kuroga Akane and Shirosaki Aoi have come a long way from their days as teenage hoodlums. Mated and passionately in love, they've started new lives together in college. Everything seems to be going great—at least, that's how it looks on the surface. Deep down, Shirosaki can't help but worry that he's not the best match for his talented alpha partner. So when another alpha with a dubious background tries to steal Shirosaki for himself, it's up to Kuroga to prove just how strong their bond really is!