Captain Momo's Secret Base

Drifting far from the usual rhythms of science fiction, Captain Momo's Secret Base settles into a quieter orbit, one where solitude, routine, and small comforts carry more weight than grand adventure. Created by Kenji Tsuruta, this understated series feels less like a traditional narrative and more like time spent in someone else’s head, unhurried, observant, and oddly calming.

The setting stretches across deep space, yet it rarely feels vast or overwhelming. Instead, the focus narrows to a single ship and its captain, where days blur together through maintenance checks, idle reading, and the gentle hum of machinery. It’s a slice-of-life story set against a science fiction backdrop, but the genre elements never push to the foreground. They exist quietly, shaping the mood rather than driving the plot.

What gradually emerges is a portrait of isolation that isn’t defined by loneliness alone. There’s a kind of comfort in repetition, in knowing every corner of a confined world, in building routines that make the endless expanse outside feel manageable. The “secret base” becomes less a physical location and more an idea, a personal refuge carried through space, shaped by habit, memory, and the subtle need for connection.

Captain Momo's Secret Base consists of one book and series is set to expand with the upcoming release of one more book. The current recommended reading order for the series is provided below.