System maintenance notice on August, 2022

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 August 28, 2022, JST

Future maintenance plan 

Sunday September 25, 2022

Sunday October 23, 2022