Shinobu Aihara

Background
Shinobu came from a middle-class family, with her father working a lot. She has an older sister named Kimiko, and an uncle named Hisato.

When Shinobu was in middle school, Shinobu was sick with a cold once, she ended up finding a note left on her sister's bed. When Shinobu opened the letter, Shinobu noticed it was a love letter for someone. While curious, she studied the letter and noticed it was for a girl named Keiko. Unfortunately, Kimiko came into the room and slapped Shinobu. Shinobu ended up apologizing and got grounded for it.

When Shinobu was in high school, Shinobu was going to her locker because it was the end of the school day, and a letter was in there. When Shinobu got home and opened it, it was from a boy named Jiichiro. Shinobu ended up reading the letter, and turns out, it was a love letter. Shinobu ended up dating Jiichiro just to be nice. Other than that, Shinobu's life was uneventful.

Positive
Kimiko Aihara is her older sister whom Shinobu loves deeply.

Hisato Aihara never met Shinobu, so it's pretty much natural.

Shinobu loves her parents, just like her sister.

Shinobu is okay with Jiichiro.

Personality
Shinobu is usually the happy teenager, but she can be a bit of an airhead at certain moments. She also has a small sense of responsibility on certain things that aren't school, or family related.