My Plain Senpai's Voice is Too Sexy!

Synopsis

It's been two years since researcher Mari Sakiyama was dumped by her boyfriend, and she's been living a life of abstinence ever since. Her only comfort is listening to the sexy voice of the popular VTuber 'Saneyuki' during her lonely nights. One day, while struggling with her unfulfilled desires, she meets her university senior, Miya-san, in the lab. He's a quiet, plain-looking guy with glasses who seems like a total introvert, but they've become close friends through shared hobbies. On a whim, Mari decides to tease him. "Miya-san, you actually have a pretty nice voice, don't you?" She jokingly asks him to read a naughty ASMR line, just like her favorite VTuber. She expected him to just get embarrassed, but the voice that echoes through the mic makes her freeze. It's the exact same voice she listens to every night—the voice of 'Saneyuki.' As he whispers lewd words in a sweet, low tone that vibrates through her brain, Mari's body can't help but grow hot. Noticing her agitation, Miya-san's usual timid expression vanishes, replaced by a sadistic smirk. "Did I turn you on?" Behind those plain glasses was the face of a dangerous, possessive male. There's no escaping this voice now...