Once I arrived home from school, I heard some sounds coming from my closet, and thinking that it was just our pet cat Chiro, I opened the door wide open, and instead found some guy I didn't know inside.
僕が学校から帰ってくると、押入れから物音が聞こえたので、飼い猫のチロかと思ってガラッと戸を開けたら、知らない男の人が中にいた。