SDAM-144 - 10-year reunion bath with sibling. "Won't you try bathing with your younger brother?" Yuna, 22 years old, university student, literature department.

“I didn't feel anything when we used to bathe together…” Yuna, a fourth-year university student harboring hidden feelings for her younger brother, was eating her brother’s underwear. Encouraged by someone, she goes to a mixed-gender bath with her brother after 10 years. What will become of their relationship, having crossed the line? The most forbidden form of love that a serious and proud older sister has arrived at.