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Kazuki Shikimori is a 17-year old junior studying at Aoi Academy, an elite school for the magically gifted. However, unlike enrollment to the school would suggest, his magical prowess is below-average. In fact, he can only use magic eight times in his life, or he will die. But not all is lost: Kazuki's family tree includes the latent genetic material for magical greatness. After that information leaks out, Kazuki suddenly becomes the most popular male student in the school, and girls from powerful magician families begin chasing him to get his genes.
Pride, Envy, Wrath, Sloth, Greed, Gluttony, Lust. These are the seven sins laid upon seven girls who rule over Biblia Academy. To retake his world, the boy decides he must control these sins... The boy, Arata Kasuga, has had the world he knows by a mysterious "Collapse Phenomenon", and his cousin Hijiri disappears into another dimension. To understand the Collapse Phenomenon and win back his cousin, he comes to Biblia Academy. There he finds the seven girls and their sins.
Kazuya is a boy with a problem: he lives with a variety of magical girls, and they all are completely in love with him! The girls fight over him constantly, but one day, things change for the worse: a missile lands on Kazuya’s house, and from it emerges a woman who claims to be his wealthy wife from the future! Now, the ladies of the house will do anything it takes to get to Kazuya before this new intruder, including fighting, shouting, kissing each other, and even joining a strip show!
One day Arata Kasuga, the demon lord candidate who possesses the "demon lord element," casually touches Lilith Asami's grimoire, the Hermes Apocrypha. At that moment, he's suddenly surrounded by by light, and a mysterious young girl shows up in front of him. He gives her the name Lilim, and she becomes attached to Arata and Lilith as her mother and father. But in the same moment she appeared, something in their world changed... The forbidden "Eternal Library" has awakened. Sealed within it is the ultimate product of alchemy, a human creation called the "White Demon Lord." The White Demon Lord plans to take out Arata and the Trinity Seven so that he can become the true demon lord. Arata and his companions must face a power greater than any they've ever seen, one that threatens to destroy the world. Can Arata and the Trinity Seven protect the world? Their final battle now begins!
In the world, there are those who hunt down rare and powerful items known as Lost Precious, including Ryuuji Kisaragi’s own parents and cousin Eriko, who’s been studying abroad for the last few years. But when Eriko suddenly returns, the boy finds himself in the middle of the action when she drags him along to intercept a special treasure from the nefarious Fang organization. What’s more, the duo soon discovers that this Lost Precious isn’t a jewel or trinket, it’s a rare dragon girl who instantly bonds with Ryuuji! Now, Ryuuji and Eriko must help teach this dragon - who they name Rose - about the world, while keeping her safe and meeting other new friends and dragons along the way.
Young Kenshi Masaki has his hands full catering to the whims of an entire academy of oversexed school girls, but a darkness looms on the horizon that will soon cast his life into chaos. The mysterious and enchanting Doll, controlled from afar by a power hungry madman, leads an unthinkable invasion that attacks the nubile students of the academy from inside its once protective walls. To save his bevy of galactic playmates, Kenshi must summon the power of a Sacred Mechanoid and fight to preserve peace in a world that hovers on the brink of destruction. Should he survive, Kenshi will be mobbed by a hoard of comely coeds who want to make the hero their husband!
After a traumatic accident takes his loved one, Tooru Kokonoe enrolls Koryo Academy, a school where every student has a weapon that is their soul manifestation. Fueled by his desire for revenge, Tor is dismayed to discover his soul is not a weapon…but a shield.
One day, out of the blue, the five worlds were linked together. Our blue world, Earth. The black world, ruled by night and magic, Darknes Embrace. The red world, protected by prayer and by the gods: Tera Rubily Aurora. The white world, managed by science and computers: System White Egma. The green world, governed by weapons and armies: Glynnesert. Meanwhile, in each of the worlds, there was an emergence of girls possessing special "Exceed" abilities. The girls would come to be known as the Progress. There, the girls would meet. The world is on the verge of doom. Only the Progress can save it.