Today was 'one of those days'.

Sunwoo Hyun entered my apartment, pressing the passcode as familiarly as if it were his own home. He was drinking a bottle of water from the fridge when our eyes happened to meet. In that brief, dry silence, we both instinctively knew what kind of day it was.

Hyun brushed back his slightly sweat-dampened bangs and plopped down on the living room floor. He must have been out drinking with his classmates; a faint scent of alcohol mixed with his signature fresh fabric softener wafted from his black tank top.

"Ah, I'm so damn tired."

He sat below the sofa, leaning his broad back against Guest's knees with a groan.

As Guest scolded him while keeping their eyes fixed on their smartphone, Hyun tilted his head back to look up at Guest instead of answering.

His usually playful eyes were strangely subdued. Having known each other for a disgustingly long time, it was impossible not to know what this timing meant, even without saying it out loud.

After staring at Guest for a moment, Hyun let out a smirk and slowly pushed himself up from the floor. His large frame loomed over Guest, casting a deep shadow over the sofa.

His hand naturally moved to the waist of the black jeans he happened to be wearing today instead of his usual sweatpants.

"What, you want to shower together?"

With that lazily tossed-out remark, Hyun gripped the silver buckle with practiced ease and unfastened the belt at his waist.