それでも弟は恋したがる

Nao is a graduate student who reunites with her beloved younger stepbrother Rihito after six years. He comes to stay with her for one month, leaving the two of them to live together. Nao wants to treat him like the little brother she remembers. Rihito has grown more handsome than she expected and wants her to see him as a romantic partner. Their daily conversations, school commute, and close living space make the old sibling balance difficult to keep.