The town is rebuilding in the wake of the demon's attack, which means there's just one more thing for Rein to do...
You can skip teachin' Sis 
how to cook, though!
!لكن أنصحكِ بعدم تعليم أختي الطبخ
Aber meiner Schwester brauchst du
echt nichts beibringen.
Aunque mejor no le enseñes
a cocinar a Sora.
Aunque pasa de enseñarle
a cocinar a Sora.
Però, puoi anche non insegnare
a mia sorella a cucinare...
Mas não precisa ensinar
culinária à minha irmã.
Учить мою сестру готовке
совершенно необязательно.