Chizuru-chan Kaihatsu Nikki – Episode 1 (EN)

In this debut episode of Chizuru-chan Kaihatsu Nikki, the story centers on Shiina Chizuru, a straight-laced, high-achieving second-year student at Wakasa Senior Academy. Known for her strict sense of justice, she is often isolated and resented by classmates who see her as a teacher's pet. Her only source of comfort is her quiet admiration for the kind teacher Tsukino, whom she harbors faint romantic feelings toward.

One fateful day, the sleazy teacher Tamura reveals to Chizuru that Tsukino has allegedly embezzled school funds. Shocked and desperate to believe it's a misunderstanding, Chizuru confronts the situation—only for Tamura to exploit her loyalty and emotions. Using her crush as leverage, he demands "silence in exchange" for not reporting the supposed crime, forcing the naive girl into humiliating and explicit sexual acts as the price for protecting her beloved teacher.

Produced by the renowned erotic team at Lune Pictures (Rune Pictures), this OVA faithfully adapts the intense, corruption-themed comic from the Kaihatsu Nikki series. Expect high-quality animation, detailed character designs, and unrelenting adult scenes focused on blackmail, defloration, and power imbalance dynamics. Perfect for fans of ugly bastard tropes, schoolgirl corruption, and mind-break narratives.