This lettering is annoying me because I know exactly what mistake was made when typesetting it and it’s consistent through the entire volume.

A panel from Dungeon Meshi in English. The “I”s are inconsistently seriffed.

(the i should only be written with serifs when it’s a pronoun, but the font they used encodes this by having the capital i being seriffed, so they’ve ended up writing every sentence that starts with an i with a seriffed i)