Living with a Vampire Diary

I was training my courage with my friends, but I fell down while trying to get down quickly with my friend... This is... A vampire's mansion... Who will be the heroine? 《Other works by author Mamji: Wanna Sharehouse (Ji-sung), A relationship that I met as a boss (Ji-hoon), What's your senior? (Ji-hoon), Are we really friends? (Daniel), Cyborg Boss (Ji-hoon)》