How do we make him edgier /a/?
Well it's one of the earliest isekai series got machine translation and began the 'Weak guy gets betrayed at the first dungeon but somehow gains ultimate power' trend, I did read it but became bored when he just magically pulled out stuffs like vehicles, at least Gun-ota is fun even though they wank gun like no tomorrow
I had trouble finding a sufficiently tattered red scarf and the cape seemed like more trouble than it was worth.
I decided to put the Katana on his back mostly because he'd never need to hold a weapon in his hand given how he could just cut people on his edge.
I felt like, since he already smokes, Vaping was unnecessary.