Stained with Snow White's Poison

There's a strikingly beautiful student in Takumi's seminar class: Yukiya Mimori, one of the famously beautiful fraternal Mimori twins. When Takumi ends up as Yukiya's partner for their research presentation and tries speaking to him, he discovers that Yukiya is unexpectedly easy to talk to. Takumi finds himself caring about Yukiya and wanting to close the distance between them. However, Takumi can't help but feel uneasy when Yukiya, cheeks flushing, casually talks about his over-possessive crush.. (Source: Brite Publishing) Note: Includes one extra chapter.