System maintenance notice on July, 2021

System maintenance on our service is scheduled as follows. During the maintenance period, our service will not be available. We apologize for any inconvenience caused.

Maintenance period:
from 10:00 a.m. to 6:00 p.m. on Sunday July 18, 2021, JST

Future maintenance plan 

Sunday August 29, 2021

Sunday September 19, 2021