Shin Kyouhaku 2, Shin Kyouhaku 2 The Animation: Kizu ni Saku Hana Senketsu no Kurenai, 신 협박2, 新・脅迫2 THE ANIMATION ~傷に咲く花 鮮血の紅~
The New Blackmail 2 Ep 2

Saki, entangled in a passionate affair with her teacher Akito, thrills at their forbidden love, but a shadowy watcher threatens their secret rendezvous. When a menacing call warns her to cease meeting Akito, she ignores it, consumed by desire. Their stolen moments escalate until she falls into a humiliating trap, exposing her darkest cravings—where lust and danger collide, binding her tighter to Akito’s intoxicating grasp.