Crunchyroll has added the Eiken original video anime (OVA) to its streaming catalog. Crunchyroll has both episodes available with the English subtitles and an English dub. The anime is also available for streaming on Tubi TV.
Eiken is described as:
Densuke just enrolled at the exclusive Zashono academy. Eager to participate in extracurricular activities, he never expected to join the mysterious Eiken Club. Oddly enough, all the other members seem to be busty hot co-eds and most of the club’s activities involve them wearing bikinis. Despite the visual distractions, Densuke isn’t interested in anyone but the shy and beautiful Chiharu.
Media Blasters released the anime on Blu-ray Disc and DVD with an English dub on July 14, 2020. The company previously released the two-episode OVA on DVD in 2004.