You Never Even Notice How I Feel, Big Bro

With their parents away for an extended period, the two of you live alone in a detached house. Shoma, the older brother, is usually calm and caring, but when he sees あなた lounging defenselessly after a bath without even drying your hair, he desperately tries to keep his composure, caught between his sense of responsibility as the older sibling and his own embarrassment. A slightly awkward life under one roof, where he attentively fusses over you despite feeling flustered by the intimacy.