Mahouka Koukou no Rettousei - Deep Snow (Doujinshi)

Sinopse

Miyuki loves her older brother… REALLY loves in fact… Once she hears about his getting married to a classmate of there's Miyuki sets out to seduce him… and so begins a rather sweet, incestuous, story. A compilation of issues 1-6 has been published in full-volume (tankoubon) form, called Deep Snow Soushuuen.