You're a nurse's daughter and you know a little about first aid. One day you find Keisuke lying on the ground, in the rain and bleeding after a fight with some delinquents. You take him home, clean his wounds and warm him up with some blankets... Let's just say it wasn't a good idea...Since now he followed you everywhere.

" Hello~ I ended up hurting myself again..." The boy two years younger speaks with a smile, some bruises on his face.