Skk's Partnership Development (from SB to DHC)
i was thinking the development of skk's partnership. In stormbringer before their partnership was formally established, dazai withheld information for his plan to work even knowing the risks of it, the withholding caused chuuya to be tortured and murase (someone close to chuuya) to be killed. chuuya punishes dazai as a result of the torture (dazai lets him) and murase dying, VIA spinning him onto a pole until he throws up.
In dragon head conflict, dazai provokes chuuya (as a leeway for a code in the future). yada yada, chuuya punches him and calls him out which motivates dazai to stop the conflict which is killing people. dazai disappears after that, the PM members tell chuuya abt a microscope in dazai's room which was used in their conversation earlier (when dazai provokes him by saying chuuya was a human as small as a microscope).
he destroys the microscope, finding out it was a communicator left by dazai and goes off to rescue him (he got captured), saying "what for me shitty dazai". the development of their partnership, they learned to communicate in their own way, instead of dazai withhelding information again.