Discover "Cool de M ~The Unshakable Woman~", a steamy hentai OVA from the "gail fee・NUR" (nur) label, specializing in shamelessly cute heroines. Featuring the stoic yet subtly naive teacher Asami Shiino (麻美先生), this title explores her composed facade crumbling under relentless desire in forbidden encounters.

Asami Shiino is the epitome of cool composure: a beautiful, big-breasted high school teacher known for her emotionless demeanor, efficiency, and subtle kindness. Popular among students yet somewhat airheaded, she finds herself in an awkward situation with her student Masaki after an unexpected incident. To "apologize" or handle his arousal as "just part of the job," she mechanically services him with handjobs and more—maintaining her blank expression even as he climaxes across her face and body.

Masaki, driven by lust and curiosity, craves to see this unflappable woman break: her face melting in ecstasy, her cool mask shattered. Fueled by overwhelming desire, he pushes boundaries in everyday settings like the classroom, living room, and toilet, thrusting relentlessly while she resists any visible change. Yet cracks appear—subtle moans, flushed skin, and eventual surrender to shameless pleasure.

This title from the "shamelessly cute" gail fee・NUR line highlights Asami's exploration of lewd femininity: a natural cool beauty forced into indecent, adorable submission. Watch her stoic resistance give way to intense, body-shaking climaxes in a mix of handjobs, blowjobs, creampies, and ahegao moments. Perfect for fans of teacher-student taboo, stoic heroines, and gradual corruption.