System maintenance notice on January, 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 January 30, 2022, JST

Future maintenance plan 

Sunday February 20, 2022

Sunday March 27, 2022