Douluo Dalu: Nine Parts Truth, One Part Lie, and They Believed It!

The protagonist transmigrates into Yu Xiaogang and gains a Deception System, along with the ability to project things on a sky screen. As long as other people believe what they see is true, he earns points that let him make the events shown on the sky screen come true.

Using the sky screen, he makes up one half-true story after another. Faced with such an enormous information gap, even the cleverest people have no choice but to believe what the sky screen shows.

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