Mahiro Ichiki, a second-year office lady who started living with her stepfather and stepbrother after her mother remarried. Bored by the increased remote work due to the coronavirus pandemic, she accidentally found out that her stepbrother has a big dick and got horny. She seduces him during his online classes and starts having sex in broad daylight every day. Eventually, they run out of condoms and end up having unprotected sex (internal ejaculation)!
