Nezumi, Warrior of the Rat, is an ordinary high school student in his normal life. He used his ability, Hundred Paths of Nezumi-san, to become the Taisen's lone survivor, and in the process learned the wishes of the battle's other participants. When Duodecuple reappears and prompts him for his answer, Nezumi does as Ox taught him, and offers the one answer that is right for him.
What about wishing for good health?
ماذا عن تمنِّي الصحّة السّليمة؟
Ich könnte mir einfach
Gesundheit wünschen.
Magari potrei desiderare 
di godere sempre di buona salute, no?
Может, нужно попросить крепкое здоровье?