Kyungsoo did it out of a broken heart.

Jongin did it out of lust.

Chanyeol did it out of selfishness.

Baekhyun did it out of guilt.

Sehun did it out of envy.

Minseok did it out of greed.

Jongdae did it out of curiosity.

Kyungsoo knew his boyfriend of five years was cheating on him from the very beginning. He held it in for four years until he saw everything with his own eyes. He wanted to end things with him and die, but when two scientists made an offer to help him forget everything, he accepted.

Jongin didn’t know how it all happened, but a one night stand with Oh Sehun turned into a long term affair. He still solely loved Kyungsoo and he never thought the other would know. Sehun promised it was only going to be physical, he accepted.

Chanyeol’s long term boyfriend, Baekhyun, left him after being accepted by the girl of his dreams. Just like Kyungsoo, he was left with a broken heart. When Minseok promised to give him a lover that will never hurt him again in exchange for a large sum of money, Chanyeol accepted.

Baekhyun loved Chanyeol, but he didn’t love him with all his heart and soul. He had been chasing after Kim Taeyeon for almost all his life. When the girl of his dreams walked into his life and gave him a chance he took it without thinking that it would shatter Chanyeol. He couldn’t help but feel guilty towards his ex-boyfriend, so when Chanyeol showed up at his front door and requested him for a copy of their memories together, he accepted.

Sehun’s boyfriend left him without a word four years ago. His friends Jongin and Kyungsoo were together all these years and it made him feel bitter. He wanted to be loved as well. He didn’t care if it was just physical, he just wanted to be held. The mistake he and Jongin makes one night carries on longer than he ever expected. He was addicted, broken and needy. When envy decided to take over his body, he accepted.

Minseok was kicked out of medial school during his last year for illegal brain experimentation. With a huge dent on his criminal record, he couldn’t pay off all his loans with the low income job he had. So when he comes across a severely injured boy not far from his house one night, he takes it as god’s call. Minseok needed money more than anything and Chanyeol was loaded. He already predicted his friend’s answer to his offer when the broken male accepted. 

Jongdae is Minseok’s younger brother, gifted with an IQ of 180. Just like his older brother, he had dreams of pursing a carrier in the medical field. However, Minseok’s mistake put his whole family in a state of poverty. Their parents fled and left the loans behind; they didn’t want to be part of it. With his family background ruined, his dreams were crushed. They say that curiosity killed the cat, so when his brother asked if he wanted to join his project, he accepted.