Park Junhee knew the road to becoming an idol would be full of twists and turns. Unexpectedly, the biggest twist is Lee Donghun. 

Donghun and Junhee were friends since high school. They are now roommates, studying at the same university, Jun one grade under his black haired friend. The university, nonstop essay writing, tutoring, exhausting dance practices and the younger's recently weird behaviour makes Donghun overly busy and worried. One night after the dance class he finds out why Junhee acts so out of place around him. (repost from ao3)

“Listen, my crazy ex-girlfriend is somewhere behind us, she is spying on me. I told her I was grocery shopping with my boyfriend, but I don’t have one. Please act like you’re my boyfriend,” Junhee whispered to Yoochan hastily. Where Yoochan is grocery shopping, but a stranger grabs his hand suddenly, expecting him to act like his boyfriend.

As the heir to his father’s humble bike shop, Sehyoon’s entire future lay in repairing bicycles. But after a once-beautiful bike came in, wrecked, Sehyoon became completely attached to its owner (or maybe it was just the industrial fumes messing with his head).

Sehyoon wants a cat. Byeongkwan thinks it might take all of Sehyoon’s attention from him.

Sehyoon having inner thoughts and nightmares, but doesn't tell the members what's up  

For Byeongkwan, androids and humans live worlds apart—until the mysterious grad student on his floor turns out to be an android. As Sehyoon opens up to him, Byeongkwan becomes wrapped in a lifestyle he never knew. But between an impending research paper deadline and a messy friend group, his growing crush on Sehyoon is only the first of Byeongkwan’s problems.