A Heisei youth graffiti drama, in which the heroine Yoneda Yui (Hashimoto Kanna), born in the first year of the Heisei era, connects people's hearts to the future as a nutritionist. Always cherishing her individuality, she sometimes struggles, but powerfully and joyfully pushes through the turbulent Heisei and Reiwa eras.
Ijuuin Shou is the leader of the Grand Cross, a gang of delinquents with over a thousand members. Yamada Tatsuhito is a perennial errand boy with no presence in class who is the bottom of the school hierarchy. When Shou ends up hospitalized, he proposes that Tatsuhito take his place as his body double for a month while he recovers to prevent the gang falling into disarray. Tatsuhito, who goes from a life of being bullied to a life as a delinquent leader, struggles to get through each day without others finding out his true identity. Takahashi Fumiya takes on a dual role of both characters.
Nagumo Shuuji, a social studies teacher at Mie Prefecture’s Etsuzan Senior High School, was a former baseball player up until university when he quit after sustaining an injury. Thereafter, he worked as a sports trainer but returned to university at 32 years old in order to pursue his dream of becoming a teacher. However, his peaceful daily life goes through a change after he’s appointed to be the advisor of his school’s baseball club that is on the verge of abolition.