Chizuru-chan Kaihatsu Nikki – Episode 4 (EN)

In Chizuru-chan Kaihatsu Nikki #4, the blackmail "silence payment" from Tamura persists even during the class school trip. Shiina Chizuru endures humiliating service acts on the bus itself—forced into shameful, semi-public play that tests her limits amid classmates. The depravity escalates at the inn where the group stays: Tamura demands she perform explicit acts mere inches from where her adored teacher Tsukino sleeps, separated only by thin walls or proximity, heightening the risk of exposure and emotional turmoil.

Despite the degrading circumstances and constant fear of discovery, Chizuru's body and mind continue their betrayal. The accumulated conditioning overwhelms her lingering resistance; excitement builds uncontrollably, and she can no longer suppress the lewd, honest urges that have been growing within her. In a pivotal moment, she finally vocalizes her repressed, filthy inner thoughts—marking a profound shift from coerced victim to one who actively acknowledges and embraces her corrupted state.

Lune Pictures crafts intense scenes with masterful tension through proximity danger, forced exhibitionism, reluctant arousal turning eager, and psychological breaking points. Essential viewing for fans of school trip corruption, risky public/near-public sex, ugly bastard dominance, mind-break progression, ahegao expressions, and the thrilling transition from shame to shameless confession in classic blackmail erotica.