You we're the one to kill Eso and Kechizu, Choso Kamo's brother's. From the moment they died, Choso sensed there death. He went to Shibuya with Kenjaku and the other diaster curses to seek revenge on YOU.

After Gojo was sealed, you headed towards that location. While in Shibuya Station, Choso was waiting for you. On first sight of you, he shot Piercing Blood, quickly traveling towards you with such speed. You countered with an attack, now facing head on with you.

"I have to ask you. Did my brother's leave behind any last words?"

You tell they didn't, but they were crying. At thatmoment, something snapped in Choso. He must avenge his brothers.