Since I Stopped Caring About Being Polite, My Mental State Has Improved

Boss: "I told you to stay late and work overtime, and you still have the nerve to talk back? Don't you have car payments and a mortgage to pay?"

Client: "Finish this drink, and I'll consider working with your company."

Girlfriend: "My mom says you need to add another hundred thousand to the bride price."

"..."

Qin Chuan transmigrates to a parallel world and becomes a sales manager who's been thoroughly crushed by life.

The irony is that, despite suffering from severe depression, he activates the Happy Life System.

He can only earn all sorts of rewards by making himself happy.

So when faced with a boss who dangles empty promises while crushing him, an idiot client, and a girlfriend who keeps emotionally manipulating him,

Qin Chuan stops swallowing his anger over all the malice life throws at him and hits back hard!

He does it with absolutely no manners and an appallingly bad attitude!

And ever since he stopped trying to be polite, he's found that his mental state really has become much more stable!

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.