A group of 23 former classmates of Nezu’s 6th grade class 2 gathered at their alma mater for a reunion and were involved in a major incident in which they were confined for three days and 13 people died. The one who confined them was Miki Yumizaki, a former classmate. Miki’s purpose was to test how much human “goodness” could be maintained in a life-threatening situation. Who will betray whom and who will kill whom? What actions will people take in the midst of a disordered situation? Revenge, bullying, betrayal, exposure, and other unpredictable developments continue in this shocking suspense!
When Kenshin Uesugi asks Miyabi, who is not happy in her classroom, "Are you worried about love?" Miyabi denies it with all her might. Miyabi, who wants to help the warlords, wonders how Uesugi managed to get Takeda Shingen back on his feet and asks questions. It's hidden...
A story about a high school full of delinquents, and its elite class that has clones of famous warlords from Japan's Warring States period fighting it out.
Students, including Aoi Nishino, take part in class and sports activity at a prestigious high school. Aoi Nishino is a member of the school's archery club. He practices archery studiously and doesn't socialize much with the other students. His childhood friend Haruka Seno is also a member of the archery club, but she worries about Aoi Nishino. One day, thunder strikes the school grounds. After that, the ordinary lives of the students changes drastically. Many samurai descend on the school grounds. It appears that the entire school has traveled back in time to the Sengoku period. Making things worse, they realize that they are in the time right before the Battle of Okehazama takes place.