Girls Bravo

Synopsis

Girls Bravo (Japanese: GIRLSブラボー Hepburn: Gārusu Burabō) is a Japanese manga series written and illustrated by Mario Kaneda and serialized from 2000 to 2005 in Shōnen Ace by Kadokawa Shoten. The story focuses on a high school boy who is allergic to girls who is transported to a mysterious world with a mostly female population; when he returns, one of the girls from that world becomes his housemate. source: wikipedia