Hikikomori Kyousei Shisetsu Hakutou no Ie (chapers 1-2)

A timid student is bound and teased in a secret society where obedience is measured by relentless pleasure, as a dominant figure forces her into a cycle of repeated climax and mind‑breaking discipline. The tension escalates when she is urged to surrender completely, her body responding to relentless stimulation while she battles the shame of being reduced to a mere vessel for the group's sadistic rituals. The story unfolds as a stark contrast between societal expectations and the raw, unfiltered desire that erupts under the watchful eyes of her captors.