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. 
Don't worry about it. I'm fine.
Non preoccuparti, sto bene.
Sto benissimo!
Não se preocupe comigo.
Eu estou bem.
Не волнуйся. Всё хорошо.
Мне почти не больно.