Definition of Children
Passengers that are (12) years or younger are classified by Willer as children. The children's discount fares are subject to change.
Some options for children bus fare are available, depending on the plan.

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However there are some caveats:
Infants are required to share the same seat as the traveling adult. The infant must be held in the parent / guardian's lap while seated.
This is for compliance with the bus transportation laws of Japan. We regret that we cannot accommodate child seats for infants even when a separate fare ticket is purchased for that purpose.
This is for compliance with the bus transportation laws of Japan. We regret that we cannot accommodate child seats for infants even when a separate fare ticket is purchased for that purpose.
