Saioshi no Gikei wo Mederu Tame, Nagaiki shimasu!

(Esta sinopse está em inglês. Ajude a comunidade traduzindo!)

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Alba is reborn as the son of a poor nobleman. He is unable to use magic due to a disease and is destined to have a short life, so he is taken in by the duke's family. There, he meets Orsis, who was his favorite person in a previous life. While this coincidence seems to good to be true, he remembers that he is why his beloved lost his smile, and begins to search for a way to live a long life so that he continue to love him.

(Source: MU, edited)