I Took Over Hidan of the Akatsuki, and Drinking Blood Makes Me Stronger

He transmigrates into the Naruto world and takes over Hidan's body.

He successfully activates the System and joins the Akatsuki.

As his combat power increases, the System awards him beginner, intermediate, advanced, and ultimate gift packs at each stage.

The beginner pack grants him Blood Drinking to Grow Stronger and the Eye of Insight.

Blood Drinking to Grow Stronger: He doesn't need to drink much. Just one drop of a person's blood can enhance every aspect of his body, including his constitution, strength, speed, vitality, mental power, and chakra.

Eye of Insight: It reveals information about a person's blood. Human blood comes in different flavors, so if you don't want to taste foul-smelling blood, use this ability to check it and choose carefully beforehand.

The intermediate pack grants a suitably matched summoning beast.

The advanced pack grants the best-matched template.

When Hidan receives the ultimate pack, the Fourth Great Ninja War begins.

Facing the Allied Shinobi Forces, Hidan collects the blood of ten thousand people and stores it in a container.

He drinks it all in one gulp, then grips his blade and plunges it into his heart.

Ten thousand people die in an instant.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.