治愈小丧尸养撒娇人鱼崽爆红帝国 / Curing A Little Zombie and Raising A Coquettish Mermaid Cub is Popular In The Empire

I started reading this for acub raising cub story but ended up staying for the side character. I really wanted to see him get a happy ending, which he did! In a realistic way so no actual CP for him (he was in an abusive (sexual) relationship with the strongest zombie that he literally couldn't escape, and the guy he met afterwards fell in love with him but is a good boy and very respectful so he's content enough to keep him company).