Nikosen was a sage before evil consumed his soul and transformed him into a demon. Konton orders him to kill the Half-Demon Princesses. Nikosen’s ambush catches Towa at a bad time, when her demon powers are fading and she is slowing turning into a human.
I've been waiting for you, Nikosen. 
My key to an endless bounty!
!كنا في انتظارك يا نيكوسين. مفتاحي نحو مكافآت غير محدودة
Ich hab dich erwartet, Nikosen!
Te esperaba, Nikosen.
Te estaba esperando, Nikosen.
Je t’attendais, Nikosen,
Ti stavo aspettando, Nikosen!
Estava esperando por você, Nikosen!
Meu gerador de recompensas!
Я тебя заждалась, Никосэн!