Soo looking for this yaoi, its about a school that groups its students to fight against ea...

Soo looking for this yaoi, its about a school that groups its students to fight against each other. Each member of the group gets a partner one is a cat, a snake, and another a human-type. The human-type is like the main character, he can cast love spells but is an awful fighter and is very weak. Also, he looks like a young boy but is really 17. I don't really remember much about his partner but he was a good fighter. Anyways they fall in love.

So not the best explanation but if anyone has a guess it would be appreciated. :)