Both of these dramas are centered around a protagonist who is the boss or leader of a group but never shows his face, only for an incident to cause him to be suddenly forced to show his face to his fellow team members.

Both of these dramas are centered around a cold, misunderstood doctor whose hair has gone white; for Black Jack it's only a streak that's lost its color, but for Dr. Frost it's all his hair. Both of these dramas are also adaptations of a manga or webcomic.

Both of these works are adaptations of the famous manga turned anime series, "Black Jack". The 2000 live action is a movie/special with two sequels, however the new 2024 live action is going to be a TV series; the episode count has not yet been confirmed.

Both dramas follow a woman who infiltrates the place where her sibling supposedly committed suicide to investigate what really happened, specifically seeking out the one person that may know more, and may or may not be to blame...

In "Revenge of Others" the FL transfers to her twin brother's school and seeks out the only witness to his supposed suicide -- "supposed" since she does not believe that he actually killed himself.

Meanwhile, the FL of "Introverted Boss" gets a job at the company her sister worked at and attempts to get close to the mysterious boss whom her sister was an assistant for, his private office window being where her sister supposedly threw herself from.