Roommate I Don’t Know About

Woo Hee-ram, a returning student brimming with excitement as he begins her first dorm life, dreams of having a great time with her roommate!
However, because his roommate disappeared, leaving behind only a doll of Hee-ram’s favorite cartoon character, Hee-ram unexpectedly finds herself starting a fun(?) roommate life with the doll.
Then one day, while half-asleep, he hugs and even gropes something he mistakes for a doll…
But starting the next day, a suspicious senior in his class begins to avoid him with an unusually cold demeanor…?
Will Hee-ram be able to figure out the truth hidden within his ‘dream’