Kotake Rina

Kotake Rina (小竹莉菜), called Leader by the umpires under her command, is Head Umpire for the Hoshitori at Tenchi Academy. She is an adult employee of the school, not a student.

Character
Level-headed, diligent, and sincere, Leader reins in the chaos at Tenchi by enforcing the rules, not always an easy task under the circumstances.

She has a friend/enemy relationship with the generally out-of-control Nurse Captain, Uryuu Ai.

Volume 1

 * Witnesses, in some amazement, Hayate and Ayana's 2-on-18 Hoshitori battle (172-173).

Volume 4

 * Declares Yuuho's strike on Hayate invalid, due to Jun's interference (18-19).

Volume 5

 * Is about to declare victory in the summit battle, when Amachi interrupts her (91).

Volume 6

 * Having located it, she declines to interrupt Kamijou Maki and Someya Yukari's duel with Ju Ensuu and Himuro Meiko (180).

Volume 7

 * She declares Maki the winner of the duel, but Maki protests that the strike was not valid. She therefore declares the match a draw instead (29-32).