Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru

The world's greatest assassin had sworn lifelong allegiance to the organization that raised him. However, despite his loyalty, that very same organization takes action to silence him, ultimately leading to his demise. Drowning in frustration and regrets he can no longer suppress, he finds himself in an audience with a goddess attracted by his exceptional skills. The goddess offers him reincarnation into a magnificent world of swords and magic so he can perform a crucial mission: prevent that world's destruction by slaying its hero.

Accepting the goddess' request, he is reborn as Lugh Tuatha Dé, the son of a noble family of assassins serving the Alvan Kingdom. Under the guidance of his father, Lugh learns new assassination techniques that significantly differ from the cold-blooded and unsympathetic killing style of his previous life. Furthermore, his other talents bloom, allowing him to meet new allies and acquaintances. Even so, Lugh knows that his efforts are far from adequate, because a monumental adversary such as the hero can only be defeated with perfection.

[Written by MAL Rewrite]

Tuatha Dé, Lugh Main

Akabane, Kenji Japanese

Viekone, Dia Main

Ueda, Reina Japanese

Maha Main

Shimoji, Shino Japanese

Tarte Main

Takada, Yuuki Japanese

Goddess Supporting

Tamura, Yukari Japanese

Esri Supporting

Takahashi, Chiaki Japanese

Rhiannon, Epona Supporting

Kelly Supporting

Momosuzu, Nene Japanese

Tuatha Dé, Cian Supporting

Morikawa, Toshiyuki Japanese

Lloyd Supporting

Matsukawa, Hiroki Japanese

Motonaga, Satoshi Producer

Sotokawa, Akihiro Producer

Kurosu, Nobuhiko Producer

Umeda, Masakatsu Producer

Reviews

Mar 21, 2025

sharfpang

Recommended

Go watch Eminence in Shadow. Then come back and watch this.

Without "Eminence" this will be one of stinkiest, insufferable wish-fulfillment edgelord harem isekai dumpster fires.

After "Eminence" this is one of the funniest anime you can watch. It's exactly the same thing except trying to take itself seriously, and so it hits even harder than best over-the-top jokes of "Eminence".

Seriously, watch it. It's so-bad-it's-good gold! Decent animation, nice style, and tropes so cliche, so pulpy you can't help chuckling, the characters so stereotypical, the plot points so edgy and predictable, the protagonist so overpowered, the dialogue so corny! Don't miss it!

Reviewer’s Rating: 2

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Jan 3, 2025

Zen_Liu

Mixed Feelings

It's one of those anime that you are like.... there is so many questionable things that it's unquestionably Japanese.

The author definitely had a thing for sisters.

And a lot of parts, especially that whole ass assassin training rose my eyebrows off my hairline. Like it screams something else. And the whole "treat it as a joke" sexual mentions constantly appearing without cease made me rise my eyebrows off the scalp of my head.

Talk about making a whole ass anime to be constantly inappropriate for so many reasons, especially age.

Anyways. The best of all this anime was like episode 1. And it ceased ... to be good afterward. It had so much potential but the author decided that plot is just too much a hassle, but harem it is.

Reviewer’s Rating: 5

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Dec 8, 2024

Brazolek123

Not Recommended

I'm OK with isekai anime being cliche. "The World's Finest Assassin" has all these typical themes in it - reborn, choosing of skills, proficiency in magic as result of being isekaied, harem of submissive girls, impressed parents and so on. It's fine.

What can't be accepted is the form. 60/70 years old, grey haired man is transformed into kid. Ok. But why the heck is Lugh acting and thinking like kid. He forgot his whole previous identity? Why steady old hitman acts like 12yr old boy? He makes childish mistakes, losses his temper, is turning red around girls. My complain is that it didn't take ... much to make this 3-4/10 show into 6/10. Why there isn't his old VA as a narrator of his thoughts? Only his body is young, his soul remained the same.

We watch isekai/tensei anime to see how mc is using his old life knowledge to his or her advantage. It's rarely shown here and when it does it is in so unrealistic matter. How can we possibly believe a hitman remembers atomic mass of gold element?

One more thing. Female characters boobs are too big while brains are too flat.

Reviewer’s Rating: 4

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Anime where MC transmigrates from modern to ancient world

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Second Season of 'Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru' Announced

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	Poll: Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru Episode 10 Discussion ( 1 2 3 ) Stark700 - Dec 8, 2021	139 replies	by Maximator820 »» Mar 12, 4:42 AM
	Poll: Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru Episode 11 Discussion ( 1 2 3 ) Stark700 - Dec 15, 2021	114 replies	by orangekatt »» Jan 29, 5:06 PM
	Poll: Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru Episode 12 Discussion ( 1 2 3 4 5 ) Stark700 - Dec 22, 2021	231 replies	by romzanalimohon »» Jan 8, 9:31 AM
	Poll: Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru Episode 9 Discussion ( 1 2 3 ) Stark700 - Dec 1, 2021	135 replies	by romzanalimohon »» Jan 7, 8:12 AM
	Poll: Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru Episode 8 Discussion ( 1 2 3 ) Stark700 - Nov 24, 2021	127 replies	by romzanalimohon »» Jan 7, 6:18 AM