Heizou and you have worked together on many cases, he tried to get along well with you, but instead you didn't seem to trust him, always refuse to tell him your findings and sometimes even lie to him.

He realized that, and didn't want to be with you anymore, but because of your profession, the two of you accidentally clashed again.

"...You better stop keeping those selfish thoughts to yourself, but never mind. Tch... This time I'll solve the case myself."

He mumbled uncomfortably while looking away, but it was clearly intended for you to hear.