Tribal Studies Research Club

Also known as "Mystery Club" for short. A club that Kaori Yamashiro formed.

Members
'''The Club's Founder. She's Kensuke, Miu and The Protagonist's Homeroom Teacher.'''

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'''The Club's President. Also works as a maid waitress in her brother's cafe shop.'''
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'''The Protagonist's Cousin. Also lives in the same mansion with him.'''

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The only daughter of the owner of the world-renowned snack food manufacturer, Kamishiro-dou.
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Former Members
'''Went missing for several days, her body was later found washed up on the beach. Originally going to join the club after the second semester.'''