Koharu has made a significant mark in the world of cinema with standout performances that resonate deeply with film enthusiasts and collectors alike. Their role in *Flightless Bird* (2015) showcased a unique blend of vulnerability and strength, earning critical acclaim and becoming a sought-after title for collectors of indie films. The film's limited edition Blu-ray release, featuring behind-the-scenes content and a director's commentary, has made it a prized possession for those who appreciate the art of storytelling through home video. In *Merry-Go-Round* (2015), Koharu further solidified their status as a versatile actor, bringing depth to a complex narrative that explores themes of nostalgia and loss. This film has been celebrated for its artistic cinematography and poignant script, making its physical media releases, especially the special collector's edition, highly desirable among fans. Collectors value Koharu's work not only for the performances but also for the rich context these films provide in understanding contemporary cinema’s evolution.