Koi Koi 7 (2002)

Tanaka Tetsurou is just your normal high school student, except he’s been in the hospital for a few months and missed one month of school. On his first day back he’s saved from a car accident by a girl who looks just like someone he used to know. This girl, Asuka Yayoi, soon introduces Tetsurou to her friends and they begin living together. Thus begins a whole new life for Tetsurou filled with school, romance.....and giant robots. But all is not as peacefull as it seams, because the girls don’t seem to be at all normal. Throw in another Asuka Yayoi, a mysterious plot by Tetsurou’s father, and new medical technology that promises immortality and this soft-hearted school story becomes an action packed battle for the future of Tetsurou and his friends.(Do not be tricked by the first volume of this manga. It gets dark and very serious after the second half of the second volume.)

Source: www.anisearch.com/manga/4116

Texto de presentación:
Tanaka Tetsuro pensó que iba a estar tranquilo en su nuevo instituto. Lejos de su familia lo veía como un escape hacia la paz, pero no va a ser así. El problema es que no sabe que su nueva escuela esta llena de mujeres, de hecho él es el único hombre en ella. Ahora será constantemente acosado y quedará en el medio de una guerra entre estudiantes que para complicar aún más las cosas son dueñas de poderes increíbles.

Fuente: www.anisearch.es/manga/4116