Tensai Ouji no Akaji Kokka Saisei Jutsu
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Once upon a time in a far away land there lived a prince, a genius prince. The genius prince fought alongside his people and led them to a great many triumphs. However, truth be told, he just wants to let everything go and live in tranquility.

Tensai Ouji no Akaji Kokka Saisei Jutsu Season 1