Heaven's Lost Property

Sakurai Tomoki has been having the same strange dream since he was a child and would wake up in tears. Sugata, an upperclassman at his school, believes the dream to be of the new continent. Later that night, while waiting under the cherry trees for Sugata and his childhood friend, an angel called Ikaros comes flying down and his peaceful life changes from then on.

Kemeko DX

The story centers on a typical high school boy and a super-deformed, doll-like robot that suddenly appears in his bedroom. The robot declares itself to be the boy's wife, and only then does a beautiful girl emerge out of the robot's mouth. The girl turns out to be someone who was promised the boy's hand in marriage ten years earlier. (Source: Anime News Network)