I was reborn in an otome game, so I'll do my best as a mob character for the rival's happiness!

I died protecting that child who supported me when I was lonely. However, I was reborn into my favorite otome game by a god claiming to be that child's parent! As a mob character... This is a story about a girl with memories of her previous life who deliberately became a mob, working hard for the happiness of her rival character. *Contains yuri elements. Please refrain from reading if you are uncomfortable with this. This is my first work, so I would appreciate advice in the comments, but please refrain from making insulting remarks.