Hiromi Tsunakake

Cacao, a student at Micro Grand Academy, wakes up one morning to find a girl made of wood sleeping in bed with him. She is Hinano, a tree spirit who possessed the body of a wooden puppet after Cacao messed up his magic teacher's spell. Having taken an instant liking to Cacao, Hinano enrolls in his school. Between Hinano, monsters, two strange twins and their four-eyed cat master, a demon boy, odd teachers and students, and the fact that he may have the potential to be one of the greatest magic users of all time, Cacao's life seems to have taken several turns for the worse...and the weird. (Source: ANN)

High schooler Shungo's life changes when Mayu, a succubus with fear of men, arrives by helicopter to live with him. His mercenary sister wants him to cure Mayu's phobia through close contact, while others try to interfere.

With his mother dead and his father working abroad, Futami Nozomu returns to the town where he lived as a child, to attend high school and work part-time at a local shrine. He soon finds himself caught up in a local legend of twin...

If God can tell tell you anything you want to know, what would you want to know? Some part of the future. Around Shibuya, words are spreading quickly that there is a site that enables you to look up anything, called "Platonic Chain".