Kokomi Shiina, a girl on the rhythmic gymnastics team, heads to school as usual, tired. During practice, she meets a girl named Chloe Lemaire. Chloe drops a picture as she's leaving and Kokomi knows it had to be important to her, so she goes around the school looking for her, but can't seem to find the girl in question...
so you should be careful what you say and do.
um zu warnen, damit man aufpasst,
was man sagt und tut.
por lo que es recomendable tener 
cuidado con lo que dices y haces.
Por eso, hay que tener cuidado 
 con lo que dices y haces.
quindi dovresti fare attenzione
a quello che dici o che fai.
então você deve tomar cuidado 
com o que diz e o que você faz.