The premise is stupid. The execution is not. Two episodes of a high school girl stumbling through eroge voice lines while her sister cracks the whip, and somehow the voice acting alone makes every awkward take land harder than it has any right to. It's genuinely funny in a way that requires zero patience for pretense, just comedic timing and the specific sound of someone's voice breaking mid-moan.

On her sixteenth birthday, Kanna Aoyagi gets a startling job offer: her older sister Yayoi, who is 28, wants her to voice characters for adult games at Blue March, the eroge company where Yayoi works. Kanna refuses at first, but after remembering everything her sister has done for her, she gives in. The catch is that this sweet high school girl knows nothing about eroge and has no sexual experience to draw on. To get by, she plays eroge as research, leans on her vivid imagination and accepts some unusual help from her coworkers, gradually growing more at ease in her embarrassing new line of work. The two-episode OVA plays the premise as ecchi comedy built on innocence colliding with a racy profession.