My Wife is the Student Council President!

My Wife is the Student Council President (おくさまが生徒会長!, Okusama ga Seito Kaichō!) is a Japanese manga series by Yumi Nakata. It began serialization in Ichijinsha's shōnen manga magazine Comic Rex from 2011 and has been collected in ten tankōbon volumes. An anime series adaptation by Seven aired from July to September 2015. A second season aired from October 2 to December 18, 2016.

Plot
Hayato Izumi runs for student council president at his new high school, but loses to Ui Wakana, a perky and charismatic girl who pledges to liberate love on campus, and throws condoms into the audience during her election speech. As much as becoming the student council vice-president wasn't enough, Hayato soon learns he is engaged to Ui due to an arrangement by their parents. Now living together, Hayato tries to keep their cohabitation a secret from the school and its all-female student council leadership, while fending off Ui's progressively aggressive romantic and sexual advances at home. But unfortunately, he attracts the attention of discipline head Rin Misumi, who later moves in next door with her sister Kei, the school's nurse.