"The world is cruel."

It's July 19th, and summer break starts tomorrow. Bocchi has... not become friends with her entire class. So she needs to make one more friend today, even if it's only one...
That's Master's master.
.إنّها معلّم معلّمتي
Das ist … der Meister des Meisters …
Es el maestro de mi maestra.
Es el maestro de mi maestra.
Le maître de mon maître…
Quella
Esse é... o mestre da mestra!
Это же… наставник наставницы!