I received a Marisa, and seems that she was once a gold badge.
She used to listen to what the owner says nicely, but gradually she became rebellious and wouldn't do anything aside from crying "Easyy!" tearfully. Thus she was abandoned.
How irresponsible the owner is. However, you can't really expect more from a yukkuri picked up from streets.
Frankly speaking, I don't want this yukkuri as well, so I used her to perform an experiment about yukkuris' durability.
I teared her skin and healed her repeatedly, made her develop anti-yukkuritis and recovered her, and pushed the limit of rub-rubbing.
Recently I got a strong desire of love and allowed her to make lots of babies. Little ones can take it easy, can't they?