Position:
3rd batter, center field

Throws:
Right-Handed

Bats:
Right-Handed

Blood Type:
O

Hobby:
Fishing

The only members of the team with actual baseball experience, Koharu played for a boys' team before being found out as a girl. She grew up on the sea as a daughter of a fisherman, and has developed an extremely powerful swing, dubbed 'Wave Motion Swing' from her years of fishing. Her batting is so strong that she occasionally hits out of the park home runs. She is originally from Tosa, a small city on the Shikoku island.