Her Personal Name was March Hare (マーチヘア, Māchihea?).
On April 1st RY 367, she was assigned to the Spearhead Squadron in the First Ward barracks. The Spearhead Squadron had their photos taken to update the Processors’ personnel files, holding a board with their internment numbers as if it were a mugshot. Shin requested the personnel officer for a group photo, and she stood together with Lecca and Mikuri.
On April 5th, she and the Spearhead Squadron held a cherry blossom party to celebrate their formation squad. They watched the shooting stars together.
On May 12th 2148, she and the Spearhead Squadron ate at the canteen.
On May 22nd, she participated in the battle against the Legion where they lost Kujo. She later played darts with Lecca.
The Spearhead Squadron finished tidying up after dinner. She was displeased with Handler-One calling them. She smiles when Shin responded to Handler-One when he claims he is an illiterate. She was annoyed when Handler-One asked Shin about his goals in the future after serving his five year services.
The female squadron did their laundry on the banks of a river, she played in the river with the other girls. The girls teased Kurena when she became increasingly flustered. The girls punished Daiya, Haruto and Theo for peeking on them on June 13th. When Shin and Handler-One were talking, the others were congregating in their rooms or the dining hall, and their chippering voices could be heard from the distance.
On July 27th, the Spearhead Squadron were sent on a mission and they passed the spot where they had the cherry blossom party, they reminisce the party. She participated in the battle against the Legion where they lost Daiya and Lecca. Later she, Kurena and Mikuri sorrowfully looked at Lecca's empty room, and decided to play darts.
She teased Kurena's one-sided infatuation with Shin, and calls her cute when she's flusters about him. Though she question what she likes about him.
She is often seen hanging out with Lecca. She is sadden with her death.
She is often seen hanging out with Mikuri.
The Spearhead Squadron unanimously agreed Raiden would be the vice captain of the Squadron.
The Spearhead Squadron unanimously agreed Shin would be the captain of the Squadron. Prior from meeting him, she had heard rumours of him searching for his missing head, and she misinterpreted his emblem with his neck scars. She looks forward working with him. She seems to agree with Kujo's comment about rather than dying, it is better for Shin to guide them to death.
She could never tell what he's thinking.
- Her associated flower in the Blu-Ray & DVD Bonus Box Art is the Aristea.