You can extend the due dates of library materials you are currently borrowing from View Your Records page in WINE.
Renewal periods and number of renewals
Each renewal must be made from five days before the due date to the actual due date.
The renewal period is the same length as the original borrowing period starting from the original due date.
You can make renewals two times for each borrowing.
Please avoid making renewals during system maintenance, which is run for about 30 minutes every night starting at 2 a.m.
The library system automatically sends a due-date reminder by an e-mail (in Japanese) five days before the due date. (The subject line is “Information from the Library”.) And please confirm your due date through "View Your Records" in WINE by your own.