I Have a Mobile Fortress

Sun Liang, who owns a mobile fortress capable of destruction on a massive scale, calls himself a "Desert Traveling Merchant." Though he somehow ended up in another world, he's gradually come to love it.

Sun Liang: "In the face of the brutal apocalyptic desert, have you ever regretted being too weak to protect your family and loved ones?

Then how about learning more about [Gene Serum], which can turn you into a super tough guy!

Not satisfied?

I've got plenty of good stuff. Come on in and take a look!"