

Yumi's major ideal is the "Justice of the Moon", according to which Justice is the help to those who needed it, as well as cuteness. Trying to be more lenient and considerate of her comrades' feelings, she leaves Yozakura to discipline and yell at the others in her place when things get out of hand. She is said by Shiki to be caring to her comrades by wanting the best of them and pushing them to the point of forgetting to relax sometimes. Her leadership is revealed in Estival Versus and the Shinovi Masters anime as pretty lax despite an intent to be firm yet gentle, as she is rarely obeyed to, and even often superseded by Yozakura.

She has also been led to review seriously her ideals as of the end of the Gessen Arc of Shinovi Versus where she confronted Asuka. In opposition, she recognizes Yozakura's greater strength despite the latter trying to persuade her the reverse. It has to be reminded that Yumi is among the worst shinobi both in technique and aptitude while Asuka has already proved her worth more than several times before the Gessen team even appeared. She remains judgmental and hypocritical, as she demonstrates in Shinovi Versus by having deemed Asuka unworthy of facing her for presenting what she qualified as incompetence as a shinobi, and instead had Gessen's lower ranked shinobi combat Asuka. While she supposedly takes responsibility as the leader of the Gessen elites, she can be seen as gullible as Shiki could have her do pointless fitness exercises when they need to prepare for the Shinovi Masters tournament. Yumi is described as a calm and serious girl, recognized as stubborn for sticking to her goals and ideals since Shinovi Versus. "Let me show you the error of your ways!" - Yumi using Black Ice in EV. In her Ice Queen mode, Yumi loses her hair tie and allowing her hair to become longer in length in addition to becoming a light blue color and her eyes becoming red in hue. Yumi also wears white socks but no shoes, or lavender flip flops since Estival Versus. The outfit has a blue double-lined trim with a blue obi on the back. In her shinobi clothes, she wears a solid white furisode kimono that hangs off her shoulders and exposes a large amount of her chest. She uses to adorn her hair with a wide white ribbon tie with blue stripes on ends. Yumi is a fairly tall girl with pale skin, light blue eyes, medium dark gray hair and an overall average complexion.

3.3.1 Festival Eve Full of Swimsuits (Anime OVA).3.2.3 Hebijo Clandestine Girls' Academy.
