Located in a deserted area of Okinawa, the existence of this homestay is barely known. Surprisingly enough, a guest from Taiwan has managed to book a 2 months vacation here.    - My name is Sana. Minatozaki Sana.  Sana introduced herself with a mischievous grin. Minatozaki Sana, Tzuyu repeated the name in her head, how cute.  - I’m Chou Tzuyu. Nice to meet you.  Tzuyu said. De