The steps to check in baggage during a connecting flight at Haneda Airport in Japan are as follows:
Arrival at Airport: First, you need to arrive at Haneda Airport and go to the gate of your connecting flight.
Locate the Check-In Counter: Find your airline’s check-in counter within the airport. Usually, the airline’s logo and name will be displayed in front of the counter.
Show your boarding pass and passport: At the counter, show your boarding pass and passport and tell the staff that you need to check in your luggage.
Checking Baggage: The staff will check your boarding pass and passport and may ask about your destination. You will then need to weigh your luggage on a scale and may need to attach a luggage tag.
Pay Baggage Fees: If your baggage is overweight, you may be required to pay additional baggage fees.
Confirm baggage information: The staff will fill in the baggage check-in form for you and put a baggage tag on your baggage. Make sure the information on the luggage tag is correct.
Baggage check-in completed: After completing the above steps, your baggage check-in is completed. You can make sure your luggage complies with airline regulations by paying attention to baggage restrictions on your way to the gate.
Please note that specific steps may vary depending on airline and airport policies, and it is recommended to check the specific regulations of the relevant airline before traveling.