This is a collaboration between Otomate and Tokyo Yakult Swallows!

WE ARE GROWING UP!
The match (game) of the players (idols) is about to begin——!

On the protagonist's first day after joining Yakult Baseball Team, a new professional baseball league called the "Top Stars League" is announced.
To participate in the Top Stars League, players must not only compete in baseball games but also in singing and dancing—meaning they need baseball players who can sing and dance!
Meanwhile Yakult Baseball Club will also participate in the Top Stars League...
The protagonist, who has just joined the company, is now in charge of management!?