The 4 girls come watch the basketball game that their Sasaki is a member of. Kana has been secretly in love with Sasaki, whom Haruko ends up making out with. This triggers Kana's NO to activate, but she notices that and runs away. 
What's up? That's an ugly expression.
Was ist los?
Der Gesichtsausdruck ist echt hässlich.
¿Qué pasa? Estás horrenda.
¿Qué pasa? Estás muy fea.
C’est une raison pour tirer
cette tronche horrible ?
Che ti prende?
Cos'è quella brutta espressione?
Que cara feia é essa, hein?
Ты чего, это же выражение такое.