[Day and Night] A Wrong Note, and Zhou Yu Looks Back

Zhou: I think we should take our time and consider this carefully...

Gu: Is that so? I don't think we need to. (subdues him instantly)

Zhou: ...

Gu: If you can settle it with your fists, don't waste your breath. (laughs)

A meticulous police squad leader x a retired armed police officer who never wastes words

Theme: I just want to get with an older guy