Futaro is hospitalized for a while after falling sick at camp school. He returns to work tutoring the quintuplets, only to realize someone has fallen way behind.
What's the matter?
Was ist hier vorgefallen?
¿Sucede algo?
¿Ocurre algo?
Que se passe-t-il ?
Che succede?
Qual o problema?
Что стряслось?