“Oh, Haechan isn’t my real name. It’s a sumo limb.”

Chaeyoung started at the boy, confused. A sumo limb? What? “What the is a sumo limb?”

“You know, like a pen name?”

“A sumo limb?” Donghyuck nodded quickly. “A sumo limb?" Again, he nodded. She was about to repeat her question, though suddenly, it all made sense to Chaeyoung. "Oh , wait! Do you mean a pseudonym?”

Haechan paused. “The is that?”

“A pen name.” Chaeyoung said blankly. "The word's not 'sumo limb'. It’s  pseudonym.”

Donghyuck looked mildly bewildered. “A pseudonym? Why would anyone create such a stupid word? It literally makes no sense, and I could've sworn it was sumo limb.”

Chaeyoung snorted to hide her laughter. “Sorry, but no. It's a pseudonym.”