Carat Cafe is a newly opened cafe in town. It is owned by thirteen youngsters who dedicate their service to their customers.

Jeonghan was assigned to be in-charge in taking the customers' orders. Known as a quick-tempered man, Jeonghan didn't want to be in that station. He just has to accept to do the job on the other hand with a heavy heart for he had to make an income in his life.

On his first day in that station, his patience was tested when one of the customers named Wang Yeongja ordered at the cafe. Encountering this customer just listed his pet peeves to girls. If he could just rip this girl into pieces and throw her in the bin; but he can't because of the Cafe's rules was preventing him to do so. All he could do to this girl is to flash his angelic smile.

As days go by, Jeonghan's situation with Yeongja worsens. Can he remain his cool and follow the Cafe's rule or will he snapped out in rage and storm off?

Jeonghan barged in the cooking station furiously making everyone in that room stop what they're doing. "What's the problem?" Seungcheol asked.

"I want to change the Cafe's rules right now" Jeonghan hissed. "We're in the middle of work Jeonghan. Why all of a sudden?" Seungcheol asked in confusion. "I want to change it right now!" Jeonghan hissed making Seungcheol stepped back.

"Jeez hyung calm down. What's with the sudden outburst?" Hansol told with a nervous chuckle trying to remove the intense aura at the room. Jeonghan shifted his look to Hansol with this deathly glare as the young man shut his mouth avoiding eye contact.

"I've been handling one of our customers' bad attitude for weeks already" Jeonghan told leaving everyone in the room burst into laughter.

"Your quick-tempered clearly shows Jeonghan hyung" Chan told and stopped laughing once he calmed down.

"Remain your cool hyung. Just take the customer's order and don't mind them after" Chan suggested with a shrug.

Jeonghan groaned and rolled his eyes. "Why do you have to put me in that station anyway?" he hissed before leaving the people in the room amused at his outburst.