Down on his luck and freshly unemployed Kentaro applies for one last job. He thinks he bombs the interview – but Manpuku Entertainment Productions has plans for him!

Kentaro is hired along with other mid-career, middle aged men, to become a new idol group, the Eternal Boys! The group records their introduction to the world.

The lessons for the debut of the Ossan Idol Project, Eternal Boys, began! But singing and dancing at the same time is hard.

Ishida recalls fond memories of the idol group, Gentlemen! Now he's in an idol group himself. Will these worlds collide?

Is Sanada really going to quit the Eternal Boys just when they're getting started?!

Haru Asai grapples with his career as a professional soccer player turned middle-aged idol! It might be time once again to play ball!

Life as a middle-aged idol isn't all stage lights, show tunes and joint cream; the boys have some tough conversations.