Boku no Daisuki na Oba-san

Yuuta Kusunoki has always admired his neighbor, Ikumi Shinoda, a woman much older than him who has been like a mother figure. One day, while visiting her, Yuuta finds her asleep on the couch, sparking a teenage curiosity that leads him to act on his desires. Caught red-handed with crumpled tissue in hand, Yuuta's clumsy excuses fail to fool Ikumi. Urged to confess, he admits his actions and accidentally blurts out his true feelings for her. Blaming herself for not noticing, Ikumi decides to fulfill his wish by pretending to be his lover for a single day—but their arrangement soon spirals beyond their initial intent.