My Teen Romantic Comedy SNAFU OVA.

The Service Club is recruited by a magazine to write an article promoting "Love and Marriage". Yukino calls in Hachiman's younger sister Komachi for assistance, and the three of them, along with Yui and their teacher Shuzuka get side-tracked and begin competing to see who can be the best wife. (Source: Anime News Network) Note: Bundled with the…