You can consult the support desk on the 2nd floor of the Central Library for it. You may be guided to another day, depending on the content of your question. The support desk is available from 3 pm to 7 pm on weekdays.
<Support desk information WEB page> https://lc.nul.nagoya-u.ac.jp/support/index_e.html
<Location of support desk> https://lc.nul.nagoya-u.ac.jp/howto/support_e.html