Shin's summons to the castle doesn't go exactly as he thought it would when the princess challenges him to a duel. Then when the aftermath of their fight goes horribly awry, it's up to Schnee to investigate. 
These days, it's just a formality.
.صار مجرّد عادة شكليّة هذه الأيّام
Heutzutage ist das
nur noch eine Formalität.
Hoy en día es solo una formalidad.
Hoy en día es solo una mera formalidad.
On l’offre encore par principe,
aujourd’hui.
Al giorno d'oggi è una mera formalità.
Hoje em dia, é apenas uma formalidade.
В наше время так уже не делают.