System maintenance notice on November, 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 13:00 a.m. to 3:00 p.m. on Sunday November 28, 2021, JST

Future maintenance plan 

Sunday December 21, 2021

Sunday January 23, 2022