After the appearance of this bastard child, Marisa cut all ties with Reimu after a bitter legal battle where she got out of paying child support, using the obvious defence that she was a woman too and could not possibly have been the father.

This left Reimu a bitter, broken woman whose carefree lifestyle was suddenly disrupted by this unwelcome burden.

Due to her neglect, her girl grew up with the worst traits of both parents -- the thuggish manner of Reimu and the criminal tendencies of Marisa, and spends her days terrorizing the human population of Gensokyo, stealing from her mom's osaisen box, and smoking opium.