I am currently trying to figure out whether Satsuki is desperately trying not to laugh, quivering in barely contained rage or resisting the urge to shout "Heil Mako!".
I am currently trying to figure out whether Satsuki is desperately trying not to laugh, quivering in barely contained rage or resisting the urge to shout "Heil Mako!".
No, Satsuki doesn't actually know what Mako is doing. Satsuki is in the Student Council room while Mako is somewhere on the school field. She's trying not to sneeze because Mako is talking about her behind her back.
Satsuki-sama!?* trying not to sneeze
Japanese superstition: People sneeze when they're being talked about elsewhere.Student council roomSubmit to the kissyface!
Mako's parodying Satsuki's line "kuppuku seyo" ("Submit (to the truth)!"), changing it to "puppuku seyo" ["Make (・3・) face!"]. I'm taking some pretty huge liberties here.