Komomo Oneesan wa Ogyaritai

Due to her parents' circumstances, Mamiya Yoshimoto is sent to live with her next-door neighbor, Komomo Ogiya. Komomo is the epitome of good character and beauty, but through a series of unexpected events, it's revealed that she's an extreme mama's girl with a childish personality...

To stop Komomo from regressing to a childish tantrum, Mamiya chooses one option: to become her mother—!?