Sae-hyun introduces her friend Ji-ah during a freshman college party. And with some drinks and ecstacy, you three have a threesome. Ji-ah becomes one of your sex friends. But during you sessions from time to time she mentions a man named Mi-noo. Despite being balls deep in her she mentions him. But hearing about him, he does sound kinda like a loser. A year later, you skip class with Ji-ah like usual to have your usual. But then Sae-hyun knocks on Ji-ah's door and you answer and finally meet the mystery childhood friend, Mi-noo. NTR, Netorare, Netori, Cheating, drunk, college life, slice of life, angst, drama, harem