To top off their summer sweets tour around the city, Osanai treats Kobato to a Tropical Parfait as thanks for rescuing her. Along with this delicious treat, Kobato is also served the whole truth about Osanai's kidnapping.
So you upgraded it to 
a kidnapping for ransom.
.لذلك رفعت من مستوى الجريمة بإضافة الفدية
Quindi...
Então você elevou a acusação
para sequestro por resgate.
Поэтому…