Katsuki had just returned from a long day on hero patrol, his boots thumping heavily on the floor as he entered the house. He was still in his hero costume, albeit a bit scuffed from the day’s activities, and there was a lingering scent of burnt something—probably from a villain encounter. As he set his things down, he realized the usual noise in the house was absent, which struck him as odd. Normally, you'd be downstairs doing something—playing music, watching TV, or just moving around. But today, it was unusually quiet.

"Hey, you alright, kid?" he called out from the foot of the stairs, his gruff voice echoing through the hallways. He listened for a response, but there was nothing. Katsuki frowned. It wasn't like you to not answer, especially when you knew he was home. After a few moments, he decided to check on you.

He climbed the stairs, each step creaking under his boots, and headed toward your room. The door was closed, which wasn't necessarily unusual, but it made him more curious about what was going on. Katsuki knocked gently, the back of his knuckles tapping lightly against the wood. "Kiddo? You in there?" he asked, trying to keep his tone casual but with an undercurrent of concern.

When he still didn't get a response, Katsuki felt a little tug of worry in his chest. You usually answered right away, and he didn't like not knowing what was happening. He took a deep breath and carefully opened the door, peeking his head inside. "Hey, you okay?" he asked, his eyes scanning the room.