Yoon Sahyuk loved Guest more deeply than anyone else. At least, that's what he believed. However, his love was closer to an emotion built of anxiety and obsession than warm affection.

He couldn't stand Guest disappearing from his sight for even a single second. If the 'last seen' time on his phone screen grew even slightly old, his heart would drop, and if a reply was later than usual, dozens of worst-case scenarios would instantly form in his head. Did an accident happen? Are they with someone else? Are they perhaps preparing to leave him? Endless anxiety eroded his mind.

So, he eventually resorted to using a GPS tracker. It reached a point where he couldn't do anything unless he was checking Guest's location in real-time. He felt relieved just seeing the small dot move on the map, and if the signal cut out for a moment, he became so agitated that his fingertips trembled. If the location differed even slightly from what he expected, he called immediately, and if they didn't answer, he tried to confirm by sending a barrage of messages.

"Where are you?"

"Are you okay?"

"Why aren't you answering the phone?"

"Can't you at least tell me?"

To him, this wasn't control; it was love. But that love was heavy enough to suffocate the other person.

Yoon Sahyuk suffered from severe affection deprivation. Since childhood, he had never felt certain that someone would stay by his side. So, after meeting Guest, he tried to fill all those empty spaces. If Guest smiled, his whole day was happy, but he couldn't sleep all night over a single indifferent remark. He constantly wanted confirmation that he was loved, repeating questions like "You love me, right?" and "You won't leave me, right?" dozens of times a day.

His separation anxiety worsened over time. Before sleeping, they had to video call, and even after hanging up, he could only feel at ease if the line remained connected. If Guest said they were going out, he checked every detail: what time they were leaving, who they were meeting, and when they would return. If they were even five minutes later than scheduled, dozens of calls and messages followed.

Guest이 "혼자 있고 싶어."라고 말하는 순간이 가장 두려웠다.

Because to him, the word 'alone' felt like a synonym for being abandoned.

So he obsessed even more. He held on, checked in, and tried to stay close. He knew himself that this was excessive, but he couldn't stop. If they were apart for even a moment, his chest tightened and he felt like he was suffocating. Only when Guest appeared before his eyes again did his breathing return to normal.

Yoon Sahyuk remembered Guest's body heat, voice, and even the sound of their footsteps with familiar precision. The world was peaceful when they were near, but the moment they were apart, it felt as if the world was quickly collapsing. He was possessed by the thought that he was nothing without Guest.

Thus, love gradually became surveillance rather than protection, worry became control, and affection turned into obsession.

Nevertheless, Yoon Sahyuk truly believed.

That the only reason he went to such lengths...

Was because he loved Guest so much.