Haramasete Seiryuu-kun!
Description:
It seems that everyone is fighting over the main character Seiryuu-kun's genes, they've even made a competition out of it. However, little do they know of the suspicious plot behind the whole situation. Four militant spirits have possessed the three girls and one guy. In any case this is a crazy school love comedy adventure, an adventure of an upperclassman and her friends trying to become impregnated.