Super Dimensions Start with Giants

I closed and opened my eyes to the world of the Light Enemies. I thought I was the master of Sabretooth Tiger, but I didn't expect it was just the same name. It turns out that there is a Demon King who has not yet appeared, representing fire. Justice has finally defeated evil and I can be a salted fish. Wait, why am I in the world of Attack on Titan? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.