BUCCHIGIRI?!
Temptation! Soup-Related Etceteras!
S1 E9:
Ichiya abandons Akutaro for Matakara, who is weakened from despair after losing his beloved brother Mitsukuni. Ichiya promises Matakara power if he completes a certain deed. Akutaro contacts Arajin, saying that he now understands Senya's true objective.