Sekai Saikyou no Assassin, Isekai Kizoku ni Tensei Suru - MangaDex

The most dangerous prey When the most accomplished assassin on Earth meets his end just before retirement, he finds himself standing before a goddess. Her world is headed for disaster, and she has need of his particular set of skills. Armed with powerful new abilities and decades of deadly knowledge, he begins his second life as Lugh, young scion of the Tuatha Dé clan of assassins. His mission: to find and eliminate the strongest individual in this world—the hero!

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Sekai Saikyou no Assassin, Isekai Kizoku ni Tensei Suru - MangaDex

Isekai Shihai No Skill Taker - MangaDex

DISC] Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru - chapter 16.2 : r/manga

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Virus Tensei kara Hajimaru Isekai Kansen Monogatar] : r/animenocontext

Sekai Saikyou no Assassin, Isekai Kizoku ni Tensei Suru - MangaDex

DISC] Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru - chapter 16.2 : r/manga

Sekai Saikyou no Assassin, Isekai Kizoku ni Tensei Suru

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DISC] Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru - chapter 16.2 : r/manga

Isekai Shihai No Skill Taker - MangaDex