The 4th season of Huyao Xiao Hongniang.

It is thirty years after the failure of the Space Colonization Program. Humanity is nearly extinct. A perpetual and deadly Rain falls on the Earth. Men known as "Junkers" plunder goods and artifacts from the ruins of civilization. One such Junker sneaks alone into the most dangerous of all ruins—a "Sarcophagus City." In the center of this dead city, he discovers a pre-War planetarium. And as he enters he is greeted by Hoshino Yumemi, a companion robot. Without a single shred of doubt, she assumes he is the first customer she's had in 30 years. She attempts to show him the stars at once, but the planetarium projector is broken. Unable to make heads or tails of her conversation, he ends up agreeing to try and repair the projector... (Source: Steam)

An internet-only stand-alone special episode of Katekyo Hitman Reborn! on the Shounen-Jump website, where the main characters go to various tourist spots in Japan. It will be made available on DVD in July 2010, and extra scenes will be included.

The fifth season of Hetalia. Adapts portions of Each Battlefield from Volume 4. Germany is shocked when he learns the truth about Ninjas and Italy shows off his new tank.