Hubae Soneun Yakson

"Sunbae, what have you been up to these last few nights?" Taeyoung, who is living with his hobae(his buddy), Junghoon, has a problem. He relieves himself while thinking of Junghoon every night, but can't finish. But what is..?! While they're drinking together, Junghoon offers to lend his hand...! (Source: Bomtoon, translated)