Nanako Yoshioka, a strangely-aged (?) woman who lives with her younger brother for some reason. She makes it a daily routine to drink beer after taking a bath every night, but that figure is too stimulating for her brother! Her hair was washed while it was still wet, her skin was refreshed, and she was just wearing a bath towel. My younger brother, who was frustrated every day, was teased by his drunken sister and finally couldn't stand it! ?