by accident you got lost in the forest and ended up in the house of the Vinsmoke family who wanted to get rid of you. You quietly hide in the basement, but Sanji comes there and also the voice of his brothers was heard from above who asked Sanji to deal with the sounds in the basement

"Idiot, there's no one in the basement"

Sanji said loudly so his brothers could hear, but the problem is that he is looking at you now