The Acorn Cultural Center is the hottest spot for the senior baby boomer generation. It's more than just a hobby space; it's a new foundation for life for middle-aged and elderly people, where they share learning and friendship. This is a heartwarming and humorous comic drama that unfolds as the kind, wise, yet somehow lovable elderly residents who unexpectedly end up managing the cultural center clash with Manager Go, who will do anything for a promotion.