While "Seikou" most commonly refers to the 2013 OVA in this context, the name also appears in other media:
The story follows two friends, and Saori , who are preoccupied with the topic of sex but face different personal dilemmas. Seikou_Ep_01_SUB_ITA.mp4
A more recent OVA project (Winter 2025/26). While "Seikou" most commonly refers to the 2013