Hate Me, but Let Me Stay manga volume 2 features story and art by Hijiki.

Naoto and Hazuki's relationship may have gotten off to a rocky start, but this alpha and omega pair have not only fallen in love and become mates, they've even welcomed a new son! Naoto never thought he could be this happy. But when a figure from his tragic past finds him again and threatens to destroy the new life he's built for himself with Hazuki, Naoto will need to summon the courage to overcome his trauma and defend his family!