Hina's biggest worry is being treated like a child due to her youthful appearance. She meets Shingo, a younger guy at a mixer, who also suffers similar treatment from others. Because of this, Hina usually takes on the older sister role, confidently taking the lead in their relationship. But when she gets too carried away with her dominant attitude, Shingo begins to push back...?! This title, included in "MY SWEET DARLING ~Gentle Guy, Sometimes Mr. Wolf?!~", explores how the relationship between these two insecure individuals will evolve.