Oh man I've never heard a more fruity opening theme song in my life, but I like this one. So who sings this song, and is there a full version of it out somewhere?

The name is "Kiss Kiss Kiss" I cant remmember who sings it for the life of me..

I think the singer is Nao Nagasawa, the same who sang the ending of first season of DE.

actually the person who sang the ending of the divergence eve first season was tsuda kazushi