Komaki is a magical girl that attends the same school as Oriko. She is generally loud, upfront, and aggressive, but can also be at times calm and genial, mostly around her friends. She made a wish to protect her friends Akira and Miyuki during a fire at school, thus granting her shielding and barrier powers. Her weapon is an axe.

Spoiler

During Sadness Prayer, Komaki slowly becomes friends with Oriko. Komaki regularly sneaks out of home at night to hunt witches; this did not go unnoticed by her younger sister, Koito, who expressed her concerns to one of Komaki's friends, Akira. During a witch hunt, Komaki got into a fight with Kirika over a grief seed, with Kirika unaware that she was Oriko's friend. Akira, who had followed Komaki to find out what she was up to, ran out in the midst of the fight and got hit by one of Kirika's attacks meant for Komaki; this caused Komaki to fly into a rage. Kirika, already shocked by Akira's death and frightened by Komaki's rage, lashed out in a desperate attack and stabbed Komaki through the head, killing her. After learning she had killed Oriko's school friend, Kirika became fearful of her reaction, but recovered quickly after Oriko forgave her.

(Source: Wikipedia)