Planning a 10 days Jan trip to Okinawa — cycling from Naha to Nago: bike rental help appreciated!

I’m planning a trip in January to Okinawa Island for about 10 days, and I’m want to spend 7-8 days cycling from Naha up to Nago.

I’m looking for help / suggestions on bike rental services or shops that:
• Can rent for ~7-8 days (not just for a few hours)
• Ideally can accommodate a longer ride / multi-day trip (so sturdy bike, maybe road or touring bike, not just city rental)
• Possibly one-way return or a way to drop off near Nago (or some arrangement)
• English-friendly would be a plus

If you have an experience or suggestions please feel free to share. Now I'm still doubting myself that is it actually possible for me to bike this far.

Thank you🙇

by guh_h