The story begins with Izumi Hayato running to be student council president. But when a beautiful girl swings in promising the liberalization of love while flinging condoms into the audience, he ends up losing to her and becoming the vice president. At the student council meeting, the newly-elected president invites herself over to Izumi's house, where she promptly announces she is to become Izumi's wife thanks to an agreement—facilitated by alcohol—made between their parents when they were only 3. (Source: MAL Scanlations)

Comedy specials bundled with DVD of the Okusama ga Seitokaichou! OVA.

Hayato Izumi is running for student council president. He's studious, responsible, down to earth...and completely outmatched by his rival, Ui Wakana. Ui wins in a landslide after promising comprehensive sex education, free condoms, and other exciting reforms. Bloodied but not discouraged, Hayato licks his wounds and settles for vice president. Then Ui moves in with him. As it turns out, their parents made a drunken promise decades ago that their children would one day marry. Ui and Hayato must now balance school life with matrimony, keeping their relationship secret from a prudish student body and learning to live with each other. Can they keep the student council in line and find happiness together? Find out in Okusama ga Seitokaichou!