Masou Gakuen HxH specials included with the volumes of the DVD/BD.

Second season of Marvel Future Avengers.

Hida Kizuna possesses the HHG (Heart Hybrid Gear) ability, but it is not strong enough to make him particularly important. His older sister calls him to transfer to a strategic defense school, where many of the students (many of which are large-breasted girls) use their HHG abilities to fight invaders from another world while wearing extremely skimpy pilot outfits. Kizuna's fighting ability doesn't measure up, but his sister has another plan—apparently having erotic experiences with Kizuna will allow the girls to replenish their energy or power-up. It looks like his new school life is going to be full of embarrassment. (Source: MangaHelpers)

When boys suddenly get into places where they've never been allowed before, some girls tend to get upset. So when the decision is made to merge the elite Yuihime Girls' Private Academy and the coeducational Kagamidai Private Academy, everyone wants to take extra care in avoiding trouble while bringing the two Privates together. Therefore, rather than just bringing the Kagamidai boys into the Yuihime girls' school all at once, a plan is concocted in which a group of test males will be inserted into the Girls' Private Academy first. Thus, poor young Shingo finds himself being thrown as a sacrificial lamb to the lionesses of Yuihime, who aren't exactly waiting for him with open arms. Will Shingo manage to survive the estrogen soaked death pit that is Yuihime? Can the girls learn to be more receptive to the boys? And just how long until something involving panties will cause emotions to flare, sparks to fly and the battle of the sexes to explode? (Source: Sentai Filmworks, edited)