Kotoko receives a request for help from a giant snake, who is the guardian spirit of Tsukuna Swamp. It appears that a murderer named Tanio Aoi disposed of a body in the snake’s swamp, but there’s something that’s just not sitting right with the snake. After learning about Kuro’s powers, Kotoko asks Kuro to accompany her on this journey, but Kuro declines for a certain reason...
After learning the truth of his brother's 
death, he impulsively killed him.
.بعد معرفته لحقيقة موت أخيه، اندفع وقتله
Nachdem er die Wahrheit um seinen Bruder
erfahren hatte, tötete er ihn im Affekt.
Al saber la verdad de la muerte
de su hermano, lo mató por impulso.
Al saber la verdad de la muerte
de su hermano, lo mató por impulso.
Apprenant la vérité sur la mort
de son frère, il l’aurait alors tué.
E quando ha saputo la verità sulla sua morte,
Depois de descobrir a verdade sobre a morte
do irmão, ele o matou por impulso.
И когда узнал правду о смерти брата,
поддался приступу гнева…