Title: Breathing the Same Air
Haeshin lives alone, and he prefers it that way. Having grown up being raised by a womanizing single father, Haeshin was used to people coming in and out of his life on a whim, and rather than deal with the same thing in his adulthood, Haeshin would prefer the solace of singledom. This also befits his sexual preference for solo anal stimulation, which he does frequently just before bed to ensure he gets a good night's rest. Unfortunately, his peaceful, homebody lifestyle ends when his former stepbrother comes to live with him.
Haeshin never wanted to live with Sangheon, but after his father, who still pays part of his rent, comes to Haeshin with Sangheon's mother in tow, Haeshin can't help but enthusiastically agree. It probably wouldn't be such a bad living arrangement if Sangheon and Haeshin didn't hate each other due to their strained relationship as children. It's even worse as adults, with Sangheon being messy, a smoker, and prone to destruction, which is entirely counter to Haeshin. Will Haeshin be able to regain his peace, or will he be stuck fighting against Sangheon for the rest of his life?