A superb suspense mystery where mystery, love, and betrayal intersect. A group of men and women are gathered together. Who can win the game and return to the past?

Based on the manga "So Dangerous!?", which was released in 2019 and became an internet sensation, this coming-of-age film follows a group of high school students as they question the future of Japan. Asami Takahashi, a high school senior, has her own ideology about politics, influenced by her father, a former Ministry of Finance official. In her political economy class, she questions her teacher about her doubts, and ends up debunking him. Eventually, Asami, along with her classmates Abe and Nakatani, stand up to revitalize the declining shopping arcade, hoping to make the future a little brighter with their own power. On her way home, Asami visits a young local reporter, Mr. Arahata, to ask him to write a newspaper article about a festival in the shopping arcade, and on her way home she meets a talented councilor, Mr. Muto, who used to be a Sentai hero.

Seigaku travels to England to play a tournament representing Japan but they are attacked by a group of street tennis players who were banned from playing official tournaments because of their rough play.

An omnibus special comprised of five segments.

Echizen and the Seigaku regulars took a day off of their normal routines and went hiking on a mountain, where a tennis resort awaits their arrival. Expecting to do some special training, the team reaches the destination only to find their precious tennis courts taken over by a group of college tennis players. However, Ryoma is more than happy to teach them a thing or two about how to play “real” tennis.