The testing continues even at 32,000 feet. Mumei and his classmates are especially challenged when their plane begins to experience mysterious turbulence. Meanwhile, while on an outing with his classmate, Haku, Mumei encounters a new rival. Who is this young man and why does he know so much about pens?
Don't just remember it. 
Engrave it in your heart.
لا تحفظه وحسب، بل احفره في صدرك
Halte das in deinem Herzen fest,
nicht in deinen Erinnerungen.
No lo recuerdes sin más. Grábatelo.
No lo recuerdes sin más. Grábatelo.
Ne le retiens pas,
grave-le dans ton cœur.
Scolpiscilo non solo nei tuoi ricordi, 
ma anche nel tuo cuore.
Não grave na memória, grave no seu coração.