I've been trying to ID the slab serifs in this lovely layout designed by Bethany Heck.
I'm pretty sure "Hiroyuki Nakano" and "tankobon" are in the same family, since the structure of the "a" looks the same. "HIGHEST QUALITY" might be in that family, too. The closest I found was Rama Slab C, but it's missing some of the nice details like the hook on the "r," the notch at the top of the "t," and the tail of the "Q."
As for "SHONEN JUMP"... I'm guessing it's a different family. The closest I found was Ballast from XYZ Type on Future Fonts. But my favorite detail, the terminal of the "J," is not quite the same.
I'm also starting to suspect these typefaces may not have been widely released yet, although this image is a few years old. What do you guys think?