Haikou Jiajie Boutique Hotel will check out early without refund.

This is determined according to the regulations of each hotel.

In fact, you signed a contract with the hotel, the hotel provided you with a room, and you paid the room fee. Since it is a contract, it depends on how you agree with the hotel. If there is a clear contract at the time of check-in or both parties reach an agreement to check out early without charging check-out fee, then it is legal for the hotel not to refund, and you have breached the contract.

If there is no contract or other agreement, and the hotel has not informed you to check out early, you can ask the hotel to refund the remaining room fee. If the hotel doesn't refund, it's wrong. If negotiation fails, you can ask the hotel for a refund through legal channels.