VN Ren'Py Silent Steps of Transformation

Silent Steps of Transformation drops the player at the gates of Veritas Academy, where Mistress Zeira's strict rule will erase the protagonist's male identity and rebirth him as an obedient "sissy". Leave your manhood at the door is the academy's entire pitch.

The 3DCG renders, BDSM framing, big-tits character design, female domination, futa/trans, gay routes, groping, group sex, handjob content, humiliation arcs, masturbation and sissification progression all factor into the academy's daily curriculum. The male-protagonist viewpoint anchors a forced-and-then-accepted transformation.

At v0.6 the game has substantial content with a clear academy-progression frame. If you want a strict-academy forced feminization game with a single dominant figure (Mistress Zeira) driving the entire arc, real institutional structure around the kink and a male protagonist whose erasure is presented matter-of-factly, Silent Steps of Transformation commits to that mood.