Seiji Takagi is a high school boy who has had an urge to kill since childhood, despite being almost perfect in everything, both in studies and athletics. He doesn't get along with other people, until for the first time a capable rival, Takuma Suganuma, appears in front of him. The two formed a deep friendship. Until one day, when Takuma questioned Seiji about the suspicious death of his sister, who was supposed to have committed suicide. At that moment, Seiji finds himself sucked into a magic circle and reborn in another world. Summoned by magic, Seiji becomes the right-hand man of the crown prince Durel, in the Kingdom of Instrial, and rises to prominence. Meanwhile, Takuma, who was reincarnated in the same way as Seiji, has gained the trust of the second prince Ashley as a soldier and rapidly went up in the ranks, too. The two are reunited in another world, and even as they are caught up in the struggle for the throne between the two princes of the kingdom, they are also drawn to the truth behind the death of Takuma's sister... (Source: Dengeki Bunko, translated)

Because of his status as an illegitimate child, Nobuhira is forced to join a temple. Not wanting to become a monk, at age 15, he flees Kyoto to go to Edo with the help of his elder sister Takako, who would later become the wife to the shogun Iemitsu. Iemitsu then gives Nobuhira a house and land of his own. However, even though Nobuhira later marries a princess, he is not allowed to live with her as he is just a poor retainer of the shogun. But with his blade, Nobuhira will cut down the evils that lurk in Edo. (Source: Anime News Network, edited)

When he entered high school, "Youthful Exuberance" was added to the subject list. It is a world where how you live your youth has become a criteria for higher education and for getting a job. Issei Hanayama just wants to live a "normal" life, while Kazutoshi Suzuki, his childhood friend, wants to be a model "youth." On their first day of school, they get into a fight and end their friendship. Some are at the mercy of the evaluation system, some surrender to it, and some challenge it.... A tragi-comic high school life begins―!? (Source: Shodensha, translated) *Note: Chapter count includes three volume-bonus chapters and the original one-shot version.*

The series won the Gold Prize in the 7th Dengeki Novel Prize.

Yorozu is a college student who feels like a total loser. He has no confidence, and he's always either worrying about messing up or agonizing about the things he's already messed up. After going to see his senpai Ken for help, he is thrown into the world of free mahjong parlors, where one plays against total strangers. Yorozu's never played free before, but luckily he has Ken, one of the best players around, to help him learn the ropes. And he's going to need all the help he can get, as the mahjong world is teeming with tough opponents... *Note: Includes 1 extra chapter.*