Sixteen years after the "Law for Public Order and Morals in Healthy Child-Raising" banned coarse language in the country, Tanukichi Okuma enrolls in the country's leading elite public morals school and is soon invited into the Anti-Societal Organization (SOX) by its founder, Ayame Kajou. As a member blackmailed into joining by Ayame, Tanukichi ends up taking part in obscene acts of terrorism against the talented student council president Anna (for whom Tanukichi has a crush on). (Source: Anime News Network)
Three years ago, in the land of Reinbulk, a Legendary Hero was summoned in the Kindom of Leezalion and he succeeded in repelling the Demon King. Now, five students are summoned back into Reinbulk by the Kingdom of Luxeria to fight against the Demon King and the demon army. Unlike the other heroes, Yashiro Yuu has no magical affinity and the Luxeria Kingdom has no intention on acknowledging his existence or returning him to his world. However, Yuu is actually the previous Hero that had fought the Demon King. Moreover, he is perplexed at the situation since he knows the Demon King has not returned since he sealed him. If the seal was ever broken then he would be automatically summoned instead of normal summoned. Since he already saved the world once and the Demon King hasn't been unsealed, Yuu decides to leave the demons to the new heroes and retire from the Hero business. So he decides to become an adventurer.
Sakuragi Ryo believes there are three different ranks inside the high school hierarchy. The "A" rank consists of the best looking, the smartest, and the most athletic members of the high school. The "B" ranks are the average members, while the "C" ranks tend to be ignored by the rest of the school. Against his own will, Ryo was dragged into the "A" ranks of his middle school, leading a school life he did not choose. Now entering high school, he vows to stay out of the limelight, and cement himself as part of the "B" ranks. He just wants to live a peaceful and uneventful school life. One evening after school, he runs into a scene of three delinquents surrounding a girl. He was hoping he wouldn't have to intervene, but the girl was in desperate need of help. The girl he just saved happened to be the prettiest girl of his high school, and now she wants to repay him for saving her. Ryo now must take all measures to not attract the attention of the rest of the school to stay in the "B" ranks. (Source: MangaHelpers)
Once upon a time in the small town of Hiraya, Nagano Prefecture, lived a normal high schooler named Seta Rinichirou. One stormy night, he found a Princess named Polilyfa and the Female Knight (Valkyrie) who served her, Krauzera, collapsed in the middle of paddy field. Both of them had escaped from their country who fell to Orc army attack using Gate magic. And now they established a government in exile at Rinichirou house. Between jealous stalker childhood friend, Princess Pau and Krauzera fascination at Japanese modern technology and culture, and superdense Rinichirounium, a slapstick comedy choked with otaku culture reference in a rural Nagano countryside will begin! Also, the people from this world and from that world began to visit one after another.
Having lost his mother and sister, Hatamata Souma led a life of carnage and violence. One day, he was summoned into a world where spirits and magic existed. “You shall be offered up as a sacrifice to the Great Water Spirit to stop this rain.” Beaten and sunk into the lake for this unreasonable request, Souma came to face with the Great Water Spirit Izan. There, he learnt that his missing sister was also summoned as a sacrifice and died. As atonement for the collapse of Souma’s life, Izan bestowed to him the power of the great spirit. Now with the ability to control over water at will, Souma vows to exact revenge and eradicate summoning magic from this world. Thus, he lives on as the great wizard Souma who lost his memories, however—. Source: Shufunotomo

