It's the day of the school's ball sports tournament. Izumi-kun is playing soccer with the boys, and Shikimori-san is participating in the girls' volleyball match. Izumi-kun knows he can't contribute much, but he plays his hardest anyway. Shikimori-san worries about him, given his natural unluckiness... and surely enough, he gets hit in the face by a soccer ball and blacks out. He ends up in the nurse's office while Shikimori-san looks after him, meaning the two of them are alone. Then Shikimori-san says she's going to stay with him instead of heading back to play in the volleyball match...
You're the one who left on your own.
أنت من غادر من تلقاء نفسه
Du hast dich ohne mich
auf den Rückweg gemacht.
Tú eras el que se iba a ir
sin despedirse.
Pero si tú te ibas
sin tan siquiera despedirte.
C’est toi qui es parti sans moi.
Sei stato tu quello che se n'è voluto andare.
Você que está indo
embora sem avisar.
Так ты сам решил один домой пойти!