List Titles with KOYAMA Kimiko

A 15-year-old Hitotose Chitose moves out of the orphanage back to his vacant parent's house and finds himself very alone and unhappy. But when five of his female high school teachers decide to move in with him to become his new mamas, he learns that the chaos of their constant attention and concern change his life for the better, if only to teach him about the very special meaning of being part of a family and enjoying a quiet moment.

Shikimori Kazuki is a 17-year old high school student at the prestigious school for magic users, Aoi Academy. All students have magical abilities and have a certain number of spells they can cast in their life -- normal students can cast several thousand spells and very powerful students, like the very rich Kazetsubaki Kuriko, can cast over 100,000 in their life. But for poor Kazuki-san, he can only cast eight. After that, if he attempts to use magic, it will only result in his turning to dust. As such, he is shunned by the girls at school and really has no friends to speak of.

Mao-chan is an 8-year old girl who wants to defend Japan from the evils of those ever-so-cute aliens that just keep landing from outer space. Fortunately her grandfather is in charge of the Ground Defense Force and so Mao-chan and two other 8-year old girls (Silvia-chan and Misora-chan) are given the task to defend Japan's ground, air, and sea. Cute girls to fight cute aliens thanks to alien technology left by the turtle Tamo-chan (Love Hina) which transforms the girls into "magical" girls. Why are the cute aliens invading Earth?