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Elletear Lou Nebulis IX

イリーティア・ルゥ・ネビュリス9世
Elletear Lou Nebulis IX, also known as Subject E, is the first princess of the Nebulis Sovereignty who wishes to destroy it after becoming disillusioned of it. She is also the older sister of both Aliceliese Lou Nebulis IX and Sisbell Lou Nebulis IX. (Source: KimiSen Wiki)