I, the King! From the Start, I Play as Barrett

**Damn it, that masked sweetheart has provoked you so many times, but he still hasn't killed her and kept it for the Chinese New Year to fuck your mother??

I said this thing was Fubuki's lick*, but he deleted my comment. The thief has no brains.

You must have made a mistake. It's Long You, not Long Zuo.

Good guy, another fucking prime minister

When you see this, you don't have to look behind you.

How does the protagonist become stronger? Should I just keep using the temporary experience card? What percentage of the experience character's strength will be obtained after using the experience card?

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What is written on the back?

Is this a plot where the protagonist relies on experience cards to kill monsters while training to increase his own strength, and in the end he can kill without any experience cards?

It's an experience card, isn't it poisonous?