After returning from their field research, Glenn and the others spend their days in different ways. On one such day, Leos visits the academy as a guest instructor, and causes a stir by proclaiming himself Sistine's fiance.
Give it up. Hooking up with her
is like digging your own grave.
توقّف عن ذلك. مواعدتها أشبه 
.بحفرِ قبرك بيديك
Lass das mal lieber.
Déjalo. Terminar junto a ella
sería cavar tu propia tumba.
Déjalo. Terminar con ella
sería cavar tu propia tumba.
Tu devrais renoncer. Avec elle,
tu perdras plus que ta liberté.
Lascia perdere, mettersi con questa 
è come scavarsi la fossa da soli.
Corta essa. Se juntar com ela é
 como cavar sua própria cova.
Лучше не надо. Если женишься
на ней, она тебя в могилу сведёт.