If you are referring to different characters with these names, you might find these helpful:
: The Tesagure! Bukatsumono Wikipedia page lists episode-by-episode summaries that highlight interactions between Aoi and Koharu , such as their discussions on recycling old footage to reduce production costs. Other Notable Appearances koharu aoi
Depending on what you are looking for, these articles and resources provide helpful insights into their roles and the series: If you are referring to different characters with
: A recent manga that features a character named Koharu . A review and first impression article can be found at Magic Planet Anime , which discusses Koharu's self-worth and her relationship with other characters. A review and first impression article can be
: In this Kon Ichikawa-inspired film, Koharu (played by Yu Aoi) is a central character navigating a complicated family dynamic. A detailed review is available at Screen Daily . About Her Brother (Otouto) | Reviews - Screen Daily
: The TV Tropes Page for Tesagure! Bukatsumono provides an excellent breakdown of character archetypes, including Koharu's "Donchiki Tanaka" nickname and Aoi's role as the straight-man of the group.