I'm right there with you on the notes on page two. Never really did like seeing that in clearly non-Japanese settings.
And this is pretty much the life of most online artists that take commissions. "You want to see your OC getting railed? That's $200 if you want full color and shading."
The adaptation on page 20 is actually pretty good. Keeping it as close to the original intention with these wordplay jokes is tricky and needs a bit of creativity to pull off.
Well, it passes the "half your age plus seven" rule at the least.
I was once the "younger guy," but it was quite a bit more than three years (we were both adults). Still, it can put a hell of a shadow over everything.