My friend's roommate is a sister.
The elder sister was beautiful and gentle, and she almost fell into the trap without even making a move.
The sweet story between a straight brother who looks taciturn but only has his sister on the inside and a sister who is charming on the outside and a nymphomaniac on the inside is brought to you.
Concept: Sincere love is often dull, and is always the most unique existence for each other.