System maintenance notice on April 26, 2020

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 2:00 p.m. on Sunday April 26, 2020, JST

Future maintenance plan 

Sunday May 24, 2020

Sunday June 28, 2020