Sionoda Miko, is a 17-year old high school student who, due to unknown reasons, moves in with her uncle, not knowing that he runs a boarding house. She meets five fellow residents, including the 27-year-old Matsunaga. Even though their first encounter wasn't good, she develops a crush on him. Miko appears to be a girl-girl. She also has cooking skills, though she makes curry almost every day.

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