Yun

Yun is a member of Chor Tempest.

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Yun is a sixteen year old citizen of the advanced nation of Simulacrum. She is very serious and reserved, yet wise and non-biased. She enrolled in Sibylla training at a younger age than most, around 6 or 5 years of age, and was assigned to Chor Ignis immediately upon completion of her training. However, Neviril's father had her and Mamiina both transferred to Chor Tempest after Amuria's death and Eri's resignment.

Yun is an interesting character. She refers to herself using masculine pronouns, and is deeply faithful to her beliefs in the Goddess Tempus Spatium. Her non-judgemental attitude makes her very balanced in arguments between her peers, and as such she is one of the most mentally adept characters in the whole show.

It is revealed later that on Chor Ignis Yun witnessed the death of some of her fellow crew members out in the battlefield. This left her feeling like a failure of a person for being unable to save them. She wished she had died along with them and states that the only reason she wants to live is so that she does not forget them. Although not directly said, it can be gathered from remarks Yun makes throughout the show that she suffered with depression following the loss of her aforementioned comrades.

When Onashia, the Guardian of the Spring, tells Yun that she is cursed to forever watch over the Spring simply because she refused to pick a sex, Yun feels sympathy for her. She does not think it fair that Onashia must suffer endlessly for one decision. Therefore, at the end of Simoun, Yun goes forth and finds Onashia at the Spring. They embrace in a hug, and Yun tells Onashia she is beautiful. Onashia cries of joy as she fades away, finally allowed to rest in peace. Yun then becomes the new Guardian of the Spring. It is unknown if she chose a permanent sex.

Her piloting partner on Chor Ignis and Chor Tempest was Mamiina. However, after Mamiina's death her partner became Vyura.