Koichi Yajima is a notable figure in the world of animation writing, known for his poignant storytelling that resonates deeply with audiences. His work on the acclaimed film "Only Yesterday" (2021) has particularly captured the attention of physical media collectors. This Studio Ghibli release, originally directed by Isao Takahata, presents a beautifully crafted narrative that intertwines nostalgia with significant life lessons, making it a standout in the animation genre. Collectors seek out Yajima's contributions not only for their artistic value but also for the unique cultural perspectives they offer. The 2021 Blu-ray release of "Only Yesterday" has become a prized item, celebrated for its stunning remastering and rich bonus features that delve into the film's making and thematic depth. As a key writer in this beloved film, Yajima's ability to evoke emotion through animation solidifies his status as a vital contributor to the home video landscape, appealing to both casual viewers and dedicated collectors alike.