Tsukishiro Hikari♀

Hikari is the most knowledgeable person about all of the cities mysteries. In the game her route only opens after the four other girls’ routes have been cleared. She first forms a relationship with Makoto when he rescues a cat from a tree; although Hikari is content to observe the world from a distance, Makoto’s hands-on approach intrigues her.

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[From Wikipedia]