Maburaho

His name is Kazuki Shikimori, 17 years old. He attends Aoi Academy, a school for elite magicians. Each magician has a set limit of spells, and performing more spells than the limit allows will cause the user to turn into dust. In this case, the number of magic Kazuki can use is far below the average in his school. Then one day, all of a sudden, three girls: Yuuna Miyama, Kuriko Kazetsubaki and Rin Kamishiro, appear before him. But of all the things that they are after, it is his genes. And for Kazuki, the girls' appearances may also spell his doom, as he soon realizes that his magic count is decreasing ever steadily due to the fact that he can't resist using magic to help them. (Source: Anime News Network)

Bludgeoning Angel Dokuro-chan

In the future, a junior high student, Kusakabe Sakura, will offend God by inventing immortality so that women will stop aging after they turn twelve. Dokuro-chan is an angel from the future sent to kill him. However, Dokuro-chan thinks that Sakura can be spared, so her idea is to constantly occupy Sakura so that he will never be able to invent the technology. Sometimes the angel will go crazy and kill him with her bat, Excalibolg, but she can revive him easily. "Pi-piru-piru-piru-pi-piru-pi!"

Girls Bravo

Small for his age, Yukinari has been bullied and abused by girls all his life. Now in high school, he has developed a rare condition: whenever girls touch him, or even come close, he breaks out in hives. Imagine his surprise, when he is suddenly transported to the city of Seiren on a mystic world invisibly orbiting the Earth, and populated with vast numbers of women and very few men. Fortunately, he has a new friend, Miharu-chan, whose touch inexplicably doesn't affect him. (Source: Anime News Network)