Hshs Sasero!!

Tsuji Motochika is drawn to young-looking individuals. Yuna appears to be a child but is, in fact, older than him and prefers mature men. They form a pact to help each other fulfill their deepest wishes—Tsuji's desire to see his father and Yuna's longing for a younger sibling. Through this arrangement, they come to understand that numerical age does not define one's true nature.