Vesper: Reads the text on screen, goes "I understand", then completely disregards it to do completely ineffective, wacky shit.
Calli: Reads the text on screen, goes "OK, I see, なるほどね", is so mechanically terrible she can't execute what the game tells her to do.
Almost any other chuuba: Not looking at the screen, will not press the buttons on their controller to find out what they do, will skip the tutorial if given the chance, angry screaming, ragequit.
Extra Hard Mode Pippa: All of the above combined, will blame the game afterwards like DSP.