[Fuuga] Loose Brother and sister [KenGotTheLexGs]

Torn between staying under one roof as proper siblings or surrendering to forbidden temptation, Aki teases her glasses-wearing brother Rei over homemade anmitsu while he confesses his erotic delusions about her. Their mother assigns them a weekend of house-sitting alone on Suicide Hill, a tragic legend that ultimately sets the stage for Rei to watch over a drunk, vulnerable Aki and shatter every boundary between brother and sister in a story arc of defloration, oral worship, and raw familial desire.