Wondering about lodger duties elsewhere with 〜だろう

Grammar Explanation: Presuming with 〜だろう and 〜でしょう

Since Cocoa helps out at Chino’s house where she’s saying, she considers the situation if she were instead staying with Chiya.

ココア:: 「私(わたし)の下宿(げしゅく)先(さき)が千夜(ちや)ちゃんの家(いえ)だったらここでお手伝(てつだ)いさせてもらったんだろうなー」; “If my lodging was at Chiya's house, I wonder if I'd be made to help out here.”; Literal: “If my lodging place had been Chiya's house, I suppose I would have been allowed to help out here.”

Key Points

ちゃん is an affectionate, informal suffix attached to names, used mainly for children, close friends, and family members.

下宿 (Boarding)

下宿(げしゅく) means boarding in rented lodgings, often with meals included. It refers to living away from home in someone else’s house or lodging.