System maintenance notice on March, 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 March 28, 2021, JST

Future maintenance plan 

Sunday April 25, 2021

Sunday May 23, 2021