Undead ReincarnationNewアンデッド転生～最弱の骨人は無制限進化と不死の肉体で最強に至る～; Undead Tensei ~ Saijaku no Honebito wa Museigen Shinka to Fushi no Nikutai de Saikyou ni Itaru~

Ashil, a soldier whose kingdom was destroyed by the Demon Lord's army and whose beloved Princess Safia was taken from him, is reborn as the weakest skeleton in a kingdom teeming with undead. In order to rescue Princess Safia, who is still held captive, he aims to "evolve" as a monster and vows revenge against his enemies! The tale of saving a fallen kingdom and rising from the weakest to the strongest begins!!!