Summer Time Machine Blues

A photography club member who quietly documents campus life and notices subtle anomalies in the clubroom. Her observant nature and camera work help reveal hidden tensions as time travel disturbances emerge. She acts as a bridge between present events and the unfolding temporal mystery.

A fellow student who processes moments through developing photos with Yui. She forms a bond with Takuma and later learns that Tamura may be her future son, adding emotional weight to the journey through time. Her curiosity and warmth help guide others through the uncertain timelines.

A sci‑fi club member who quietly plans a hopeful gesture—asking Haruka out—only to be swept into a web of misreads and time-travel chaos. He is eventually forced to confront the consequences of a journey that leaves him stranded in the past. His optimism contrasts with the surreal danger of altering history.

The club adviser, known affectionately as Hoze, who tries to repair the broken remote and warns about the perils of altering the past. His time-travel curiosity hints at larger ambitions and a possible future project. He anchors the group with practical knowledge while guiding them through ethical considerations of temporal meddling.

The bold member who tests the time machine by sending himself back to August 19. He becomes the pivotal link that reveals the device truly works, and his journey to 1906 places him in a world where he’s mistaken for a mythic creature, blending folklore with sci-fi.

A fellow time-traveler who journeys with others to retrieve or steal the remote. His actions propel the plot through several eras, and his choices reveal the tension between curiosity and responsibility. He is part of the trio that travels to yesterday seeking to alter the course of events.

A sci‑fi club member who arrives from August 20, 2030, and joins the present-day crew after being pulled into the machine. His connection to Haruka becomes a central emotional thread, as clues suggest he is Haruka’s future son. He embodies the mystery at the heart of time travel and intergenerational ties.

A clubmate who, in a twist of fate, is revealed to have taken the missing shampoo—an almost mundane detail that becomes part of a larger chain of events. His role ties personal habits to the wider fabric of the day’s upheavals as the remote blurs the boundaries of time.