Seoul, a second-year medical student at Korea University, was relieving academic stress in a secretive way he couldn't tell anyone about—

“Huh, hmm... right here feels so good...”

...masturbating his prostate while listening to sticky slime ASMR in his single dorm room. But when the dorm undergoes remodeling, he suddenly becomes roommates with Jin-Hu, a physical education major. His alone time vanishes, and Seoul's pent-up frustration reaches its limit....

“From now on, you're my dildo.”

(Source: MrBlue, translated)