Noblesse Temporada 1 Episódio 10

Rael arrives at Ye Ran High School to collect Seira per the Lords order, but he encounters M-12, Tao, and Takio there, and a fight breaks out. Who is this man suddenly confronting the three of them? Seira tries to persuade Rael to leave, but Rael continues to do as he pleases. And for the sake of protecting Raizel, Frankenstein cant just stand by and watch all this carry on...