Maybe you're just dense that you didn't get the names of the characters. Example, Shell's name is Shell because he hides in his shell, not showing who he truly is to anyone. One (Eric) is the one for Shell. Pain is named pain because he will always be in pain because he never got to be with the one he loves.
Yeah that's kind of really obvious and straightforward and I'm sure everyone caught that, myself included. Still didn't like the names of 99% of the characters. I didn't mind most of them too much but I did kind of cringe at some of them because they were a little pretentious. Then again, as much as I liked this, the story overall was kind of pretentious as well so maybe the names fit it just fine lol.
I really liked this. The only thing I had an issue with sometimes were the names of the characters. It was quite obvious the authors didn't know English very well and just chose English words that sounded cool. I didn't mind it that much for the most part but I had some trouble feeling intimidated by evil schemer called "Humpty Dumpty" because, well, Humpty Dumpty is a chubby, giant egg-shaped guy who's best known for falling off a wall lol