The romantic comedy begins when a love letter arrives out of the blue for Keiki Kiryuu, an ordinary high school student who has never had... more>> a girlfriend as long as he has been alive. The letter does not include the sender's name — but the letter does include white panties. In the process of investigating who could be his "Cinderella who left behind her panties," Keiki discovers every candidate is uniquely perverted and desperately interested in having him participate in their perversion. <<less

Minaguchi Kaoru is nothing special. He's no good at sports or school, isn't in any clubs, and he's not popular. He has no friends and isn't even interested in any of the girls he knows. He's also teased due to the fact that he loves shoujo manga. Unlike the harem daydreams of his peers, he dreams of finding his true love. Unfortunately, a shinigami comes to kill him, simply because he's a "forever alone" sort of guy. When he gasps out his intention of embracing life with his final breaths, though, she takes it back! As long as he follows through on his intentions, he won't be killed. ... more>>

To convince the shinigami that his plans are genuine, he declares that he will confess to the girl he likes, the very next day. Expecting failure with confessing to random girls in his school, he sends out love letters to four different girls. To his surprise, they all agree to be his girlfriend. Now, this shoujo-manga-loving guy has ended up in a kind of harem story, quadruple-timing four girls! Will he be able to stay involved enough with society to avoid an early death? <<less

The story starts with the death of Hikaru Mikado. That guy was a natural charmer, a “harem king”, but had no real male friends. After... more>> he died, he became a ghost, a soul, but Koremitsu Akagi can see him. Koremitsu though, isn’t really like Hikaru. His red hair and his evil-looking eyes make him look as a delinquent, even though he is very kind inside. Hikaru asks him a favour: he wants to fulfill a promise, which he couldn't fulfill anymore. The promise was to give his girlfriend and fiancée, Aoi Saotome, seven gifts for her seventeenth birthday. Koremitsu accepts, and has to work hard to help fulfill Hikaru’s promise with Aoi. <<less

The Demon King rules over all demons, and using his immense power, put the human race through 1,000 years of oppression. Thus, the human's era has ended and the demon's era has begun.... more>>

Lucifer has inherited the title of Demon King passed down from his father. However, rather than fight the humans, he much rather just get along with them. Not only that, he becomes sick at the sight of blood. Since all the humans knew where the Demon King's castle was, he was constantly trying to be killed by assassins. So he decided to leave the caste and live out in the wilderness where humans couldn't find him... or so he thought. Since every man with power has been defeated by him, the humans sent a girl to defeat him. How will Lucifer deal with this beauty sent to destroy him? <<less