License and information

• This software is developed by Ibuki Kawamata.
• Please cite this web page if you use this software.
• Bootstrap is used as a page style.
• The bell sound is originally from sounddictionary (free).
• You can use this software without any permission for non-profit academic or educational purpose.
• Use this software at your own risk.
• I shall not be responsible or liable for any loss, damage, trouble, or problem caused by this software.