[Scrum Hitori (Takamichi)] Hatsujou Sister Imouto wa Onii-chan no Nioi ga Ki ni Natte Shikatanai!｜Sister In Heat: My Big Brother's Scent Is Driving Me Crazy!! [Crystallized]

A provocative sibling premise takes shape around a sister whose fixation on her brother’s scent turns domestic life into a source of panic, longing, and dangerous secrecy. The interior pages move through cramped bedroom encounters, intimate close-ups, and stammered dialogue where embarrassment, jealousy, and the fear of crossing a family boundary collide. A stark yellow-and-black closing page advertises translation commissions through crystallized.h, marking the album unmistakably as a fan-produced release.