If you are looking for Japanese media involving these themes (such as the "Teacher/Sensei" or "Lesbian/Rezubian" tropes), you might find relevant titles by searching on dedicated film or anime databases like MyAnimeList or AsianWiki .
I was unable to find a specific media title or definitive "solid piece" matching that exact combination of tags. The search results for those specific terms did not yield a singular, widely recognized work. If you are looking for Japanese media involving
If you are referring to a specific creator's work or a niche title, providing a bit more detail—like a plot point or a character name—would help me track it down for you. If you are looking for Japanese media involving