Rimuru-chan, a 20-year-old who balances being a student and an idol, has seen her popularity skyrocket thanks to her cuteness and large breasts. Her SNS DMs, where she posts cosplay photos, are flooded with inappropriate requests for shoots from fans who lack manners. Amidst this, a video believed to be a private cosplay sex shoot has surfaced. The video showcases her soft, large breasts being intensely handled to the point of changing shape, revealing a pleasured expression on her face. She performs oral sex and gives handjobs to an erect penis. Her vagina, teased with cunnilingus and finger play, is then subjected to raw, unlubricated insertion. As she climaxes, her hair becomes disheveled, and her eager vagina, primed for insemination with intense hip movements, begs for an internal ejaculation. She ends up receiving a massive amount of semen and experiencing intense orgasms. The description mentions that the video includes previously unreleased footage from the "instc534" amateur floor. It also warns that the content may vary depending on the distribution method.