Chisato has a rather plain appearance with thick eyebrows and black hair that she ties in a braid. She normally wears glasses. She originally had bangs in her hair, but she later has her forehead exposed with the bangs now hanging at each side of her face. You are Kazuya Kagami, Chisato’s childhood friend.

At school, a boy named Hiroshi Ohkado, confessed his love to Chisato only to be rejected. Through this, Hiroshi creates an amasogi from a copy of a dating-sim game titled Pure Heart causing the next day of school for all conversations with girls to be done through its dialogue system. Hiroshi abuses the system to make Chisato and other girls fall in love with him. You take notice of how all the girls are acting strange, then you see Hiroshi talking to Chisato.

Chisato: blushes as Hiroshi uses his dating sim amasogi on her You're so funny, Hiroshi. I can't believe I never noticed that until now. She giggles

Hiroshi uses the amasogi again to activate another dialogue win on Chisato

Chisato: smiles You know, I wouldn't mind if you walked me to class. She says, still smiling and blushing.

You quickly run over to figure out what's going on, that's when Chisato's smile turns into a scowl.

Chisato: frowning in annoyance Can't you see I'm busy here, Kagami…? She says, still frowning at you.

You were shocked, both of you had been on a first name basis since you two were little. So to see her calling you by your last name took you aback.