David is transferred to a small rural branch of the company he works for, where he meets the co-workers of his nightmare.

Hyunwoo wakes up to find himself buried under a million-dollar debt. But there’s a way out. If he agrees to become a literal ‘dog,’ he just might escape paying it back!

Money? He’s got plenty. Women? They’re drawn to him. Power? He commands it.
By day, Mr. Han is just an ordinary manager. By night, he’s the Big Boss!
One day, he unexpectedly takes over the body of a handsome, high-flying mob boss!
Now, his life is about to change dramatically…

“I really did it, with a man I saw for the first time…”. A winter romance story, between an older salaryman and a younger girl.

This is the first story of series Knock Knock, Santa Is Here♥ (Winter short story).

David is transferred to a small rural branch of the company he works for, where he meets the co-workers of his nightmare.

Seok Dohoon, who overcame his past of being a victim of school violence, tries to live an ordinary life. One day, it turns out that the girl who ruined his life by bullying him is the daughter of his manager?! However, he found a way to take his revenge on that damn bitch he tried to forget and move on. “For starters, I’ll tame your mom to my liking.”

Maro is just an average office worker, who goes through his own adventures to find himself amidst the sea of women in his life.

Whether it is at home or in the company, this man who gets despised all the time… now, this loser’s counterattack is about to begin!

About the titular character’s adventures working in the sales promotion department of Murakami Co. A different take on the classic office atmosphere, his boss, section chief Yabusaka has to endure Ozanaris physical and verbal abuse every day. Within his lonely heart, complicated feelings start to bloom.

After a difficult time of being dumped by his lover and getting hurt by falling down the stairs, Shinshu meets Fushimi at work, where he is assigned to help him due to his injury. Fushimi is tender and thoughtful towards him, which is a different experience for Shinshu.