The Hero Will Die

Ken once trusted the hero to save the world, fighting alongside him, believing that they could change the world.
Until when the party meets an unbelievably strong boss. they betrayed Ken and used him as bait while escaping. Even the girl he loved did the same.

when Ken thought everything was over, a light overwhelms his conscious and he wakes up with an incredible amount of knowledge.

Now, using the new powers he receives, he rises back up from the bottom and swears vengeance.

"This time...I will not be tricked and THE HERO WILL DIE!!!"