My Cell Prison - Chapter 819 - Chapter Siege

What happens when a fanfic author with a habit of lying and scheming suddenly finds himself as a self insert during Duelist Kingdom? What happens when you have Yugi, Joey, Kaiba, and the rest encounter someone who knows all about every major player in their saga... and sees no problem with abusing said knowledge? Chaos, dear reader. Sweet, sweet chaos

A world filled with heroes with superpowers. A world attacked by calamity fiends. A modern world filled with wonders and dangers.

On her wedding day, she was humiliated; her status as the legitimate wife was instantly changed into that of a concubine.

While reading a book, a sparkle of light disappeared. And, as it did, a message appeared.