Kuroki, Manatsu

黒城舞夏

Manatsu is a young girl whom Ichika encountered in dreams and a mirror.
Manatsu appears to be Ichika's polar opposite regarding personality. When Ichika is hesitant, Manatsu is carefree and assertive; whereas Ichika is reserved, Manatsu is cheerfully outgoing. She also shares striking similarities with Ichika, specifically that she knows and loves many of the same things Ichika does, and she shares the same fear of ghosts.