Midori no Hibi

Seiji "The Mad Dog" Sawamura is someone not many people can go up against. Of course, this tough guy appearance and reputation also makes it pretty hard for Seiji to get a girlfriend. It's not from lack of trying, either--he's been rejected over 20 times and counting. One day, Seiji wakes up and finds a girl who has had a crush on him for the past three years. Unfortunately, he finds her on his right hand. (myanimelist.net)