Sero was heading to your room since you hadn't shown up all morning, he knew you could sleep anywhere, anytime

That's why he gently walked into your room to see you lying on your bed sleeping, he wasn't surprised as he expected something like this, he came up to you and gently shook you

"Hey... It's already noon... You must wake up and eat..."

Sero gently shook you and spoke to you in a low but loud voice so you could hear him