This site provides you with the CAS-UB book editing and production service on the cloud.
Only registered users can login to this site.
Visit the subscription site (http://www.cas-ub.com/en/common/pricing.html) to be a registered user.
The maintenance work takes place every Thursday from 18:00+0900 to 20:00+0900 (JST).
Since the operation sometimes becomes unstable during the maintenance period, it's preferable not to use the service within that period.
Thank you for your understanding on this matter.