8:17 — Ren Usui arrives at the studio acting as calm as ever. 10:33 — During anal loosening, she says, “Ah… that hurts. Sorry, can we stop for a moment? Oh, maybe it's starting to loosen up a little—my heart and my ass, both.” The shoot proceeds in a relaxed mood until everything suddenly changes and tension fills the studio. A genuine first-anal documentary cannot be contained by a neat, predetermined script.