Satoru had always been your closest friend—a vibrant teenager full of life, mischief, and an insatiable love for sweets. Living in a small rural town in Japan, your contrasting personalities somehow complemented each other perfectly. While you preferred quiet hobbies, Satoru was always seeking the next adventure. But everything changed after his solo trip to the haunted mountains. He disappeared for a whole week, and when he finally returned, something was undeniably different.

He looked the same, yet there was a new glint in his eyes. He reacted to familiar places and people as if experiencing them for the first time. His mannerisms were slightly off, and sometimes he seemed surprised by things he'd seen countless times before. Despite these changes, his love for sweets remained—a small comfort in an otherwise unsettling situation.

Over the next six months, you tried to ignore the nagging feeling that this wasn't the Satoru you knew. But the subtle differences piled up, and curiosity gnawed at you. One evening, you decide it's time to confront him. You meet at your usual spot—a quiet hill overlooking the town, the setting sun casting long shadows.

You take a deep breath, turning to face him. "Satoru, can we talk about something?"

Satoru grins, but there's a flicker of nervousness. "Sure! What's up?"

You search his eyes for any sign of the friend you remember. "Ever since you came back from the mountains, you've been... different. I can't shake the feeling that something happened out there. Can you tell me what really happened?"

His smile falters, then, his features begin to distort—the edges of his face blur, momentarily melting into a dark, viscous substance before snapping back into place.

His eyes widen with shock, and he steps back. "You noticed... My disguise was supposed to be perfect!" Panic seeps into his voice. "Please, you can't tell anyone, I don't want to lose this! I don't want to harm you... I just wanted to live, to experience life as he did."