1988
Otokojuku, a private school for juvenile delinquents that were previously expelled from normal schools. At this school, Japanese chivalry is taught through the feudal and military fundamentals. Similar to an action film, the classes are overwhelmed by violence. Only those who survive it become true men.
2019
For a thousand years, the Vikings have made quite a name and reputation for themselves as the strongest families with a thirst for violence. Thorfinn, the son of one of the Vikings' greatest warriors, spends his boyhood in a battlefield enhancing his skills in his adventure to redeem his most-desired revenge after his father was murdered.
A disastrous school trip leaves four students stranded on an uninhabited island. Staying alive on a deserted island is easy for Homare, thanks to her survivalist father's training. While the others struggle, she shows them that being isolated may not be as dreadful as they thought.
Awakening her dormant abilities as a devil one day, Yuuko Yoshida aka Shadow Mistress Yuuko, is entrusted with the mission to defeat the Light clan's shrine maiden, a magical girl, by her ancestor Lilith. Yuuko meets magical girl Momo Chiyoda through her classmate Anri Sada, and challenges her to a duel, but loses quickly due to her lack of strength. Since then, Yuuko has struggled with her role as a devil and her duel with Momo, and borrowed help from her regularly. However, by a strange coincidence, Yuuko also weakens Momo by taking away her power to cooperate in protecting the peace of Tama city.
2022
The story begins 15 years after the demon king was defeated and the world has become peaceful. Kotone, who graduated from school and became a magician, inquired the kingdom-affiliated RPG Real Estate in order to find a new home. In reality, RPG Real Estate was Kotone's place of employment, and together with Fa, a demi-human, the priest Rufuria, and the soldier Rakira, they help support the searches of new homes for the customers with various circumstances.
2004
Ayu has lost the meaning of life after she has been working as a prostitute. However, her cold life change when she meets Yoshiyuki whom she wants to help with his heart problems. The two love each other, but Yoshiyuki's father doesn't allow their feelings. Ayu goes back to prostituting only to help Yoshiyuki earn money for his operation.
2017
Higashigaoka High School’s male swimming club presently has only three second-year members – leader Sakaki Shuhei, Shinozuka Daiki and Koganei Haruyoshi. They welcome the new school year with the aim of getting members.
2016
About 150,000 illegal entrants live in Tokyo. They are not recognised as refugees and live in poor conditions. To protect themselves, the illegals create a secret organisation. The organisation has a bank which Japanese Financial Services Agency is not involved with, a hospital that is not authorized by Japanese Ministry of Health, Labour, and Welfare and an illegals police force called "Dias Police." The only police officer in the organisation is Saki Kubozuka. His age and nationality is unknown. Saki Kubozuka does not speak much, but he has a warm heart and strong sense of justice. He takes care of the weak and tries to maintain public order.
