How to Build a Secret Base

In How to Build a Secret Base, 50-year-old Kenichi and his childhood friends reunite at a classmate's funeral. They decide to revive a childhood dream of constructing a secret hideout, embarking on a six-day challenge without modern conveniences like cars or smartphones. This journey is not just about building a physical structure; it’s also about reconnecting with their past and confronting the realities of adult life.

The film features performances by Hiromasa Hirosue, Takehiko Fujita, and Kozo Sato, who bring the characters' struggles and camaraderie to life. As they work on their hideout, the men reflect on their youth and the changes that come with age. This exploration of friendship and personal challenges resonates with audiences, making it a relevant addition to the drama genre in 2025.