If you could just bring back the Naruto manga series to your mind, Sasuke is one of the main protagonists of this series and let’s discuss that why Sasuke had the evil mark in the first place. Sasuke had a mark that signifies his doomed situation but he usually uses it as his trump card. However, later on, he disappeared with the help of his brother, Itachi to get rid of the mark using the Sword of Totsuka.

Here’s the full story behind Sasuke’s curse tattoo and it goes something like this…

Sasuke who took birth on July 23, was a vibrant child, who was always enthusiastic to gratify and be a deserving candidate of his family name. This however changed as his entire family and the village got swiped by Itachi, his elder brother. The surprising thing is that Itachi was someone who Sasuke admired and looked up to as a younger sibling. Itachi let go of Sasuke by not killing him and told that Sasuke, isn’t deserving enough to be killed yet. Only by growing more powerful, such as by procuring his personal Mangeky? Sharingan, could he declare himself to be a challenge worthwhile to Itachi’s abilities. Itachi literally forced Sasuke to dislike him, to yearn for revenge, and to gain strength from that.

And so, Sasuke’s only aim in life grew up to be the revenge for his family’s massacre and, by extension, obtain the power that demanded that revenge, even if it involved earning a supplementary power from outside – that’s how Orochimaru came into the picture. With Orochimaru’s Juinjutsu, which is this cursed seal and which helps to transform, that Orochimaru can ask others for support. One of the curses that were bestowed was this Cursed Seal of Heaven which Orochimaru bestowed on Sasuke that could help the receiver increase their chakra levels and hence their physical abilities. It is unquestionably one of the strongest seals. When the seal is activated, Sasuke gets the powers equal to Naruto’s one-tailed form when he first implemented it.