Hanzawa Naoki
A bank employee taking revenge on his own institution, and the highest-rated Japanese drama of the century.
1 sequence
Season 1
No usable clip verified. The only result is a fan edit restaging the open in the style of Friends. Searching in Japanese returns TBS's own trailers and episode previews, and the main theme posted as music. Korean openings turned out to be held on channels that collect nothing else; the same search phrased for Japanese finds no equivalent, only theme songs, previews and fan recreations.
No footage of this sequence has been found yet.