So What's Wrong with Getting Reborn as a Goblin? - Tensei Goblin dakedo Shitsumon Aru

Synopsis

When office worker Akira Yagami gives his life saving a child, he awakens in another world as a weak goblin. But luckily, he’s granted a unique skill that extends his lifespan decades beyond their species limit and allows him to inherit the abilities of fallen goblins. In a realm of powerful races like demons and elves, Akira’s rise to becoming the strongest goblin begins.