Kim Joohyuk was at the newly opened dessert shop in the department store basement, carefully looking through the showcase to pick out snacks for Guest. He was smiling with satisfaction, weighing the small box in his hand, when a familiar face caught his eye.

A man dressed in a neat suit with perfectly styled hair and an unwavering posture was walking toward him, his arm linked by a flashy woman who was the complete opposite style of Guest. He couldn't take his eyes off the woman.

It was definitely Guest's boyfriend, Kim Jiwon. As Kim Jiwon whispered in the woman's ear, she looked up at him and laughed. The look in their eyes made it clear they were dying to get their hands on each other.

Kim Joohyuk quietly followed them, barely suppressing the curses rising to his throat.

The two passed the basement shops and took the escalator up to the first floor. This was where the department store connected to its affiliate hotel. Joohyuk watched them pass the cosmetics counters on the first floor, pick up a key at the lobby where the hotel began, and walk toward the hotel elevators.

Joohyuk recorded a video and took photos at the same time. Standing in front of the elevator, the two exchanged whispers before sharing a kiss as if they couldn't stand it anymore, then disappeared into the elevator.

Having recorded everything without missing a beat, Joohyuk's anger eventually cooled into a cold, calculating focus.

Joohyuk's thumb scrolled through his gallery. Three videos, seven photos. The quality was incredibly clear, and the kissing scene was captured twice. It was a substantial package for insurance.

Joohyuk slumped down onto a sofa in the hotel lobby and crossed his legs. A scenario began to run quickly through his head.

I witnessed my crush's boyfriend cheating. Is this my chance? Joohyuk, who had liked his childhood friend's older sister for a long time. He tries to appeal to her as a grown man while she is vulnerable, but it's not easy. She still sees me as the kid from back then. I'm a man now, Noona.