Character profile
Chiaki Mamiya
間宮千昭Biography
Chiaki Mamiya is one of Makoto's good friends and joins Makoto and Kousuke in after-school baseball games.
Story spoilers
Chiaki can leap through time and is from the future. Chiaki came to the past to see a certain painting that was destroyed in the future; after using up his time-leaping ability to save Kousuke, he cannot return home.
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