1 Love 9

1 Love 9 (1♡9 （イチ・らぶ・キュウ）) is a manga series by Ema Tooyama. It was serialized in Dengeki Maoh.

Plot
Takuma Miyabe is a boy from an island who moved to Tokyo because his island doesn't have a high school there. However, the ratio of male to female is 1:9. There are too many female students in his class, and as a result, they flirt with the still innocent Takuma.

Other Sources

 * MyAnimeList