Sister Princess!

I just started watching this anime but I'm really hooked in! It's about a boy named Wataru. He failed a test to get into The high school he wanted when strangely he was accepted to a high school on a little island. When he is looking for a place to stay he found waiting for him 12 sisters! Plus this weird spy girl who's pretending to be one. She keeps trying to get him off the island. It's a very funny anime so i hope everyone will try it!!

Here are his 12 sisters.