Both of these dramas deal with extramarital affairs, murder, revenge, and most importantly, women at the centre of both stories.
Both dramas deal with the concept of aspiring idols and musicians getting second chances at realising their dreams.
DOAP and Hush are similar in the style of the story-telling, with the lead narrating the story. They are both office dramas, and focus on employees and how they handle ethical dilemmas that occur in the corporate sphere.
Makjang and obnoxiously rich families, and female leads who try to navigate and find the culprits to unjustly murders.
A presumably happy couple is shaken as a murder that is connected to the both of them occurs. Both dramas are set around an investigation to find the culprit, as well as the personal struggles of the people involved in, and affected by, the case.
Both dramas deal with the concept of time leaping. Todome No Kiss leans more towards a comedy than 365 Repeat the Year does.
The characters in both dramas have love and compassion for their jobs, and a nice balance between being professional and having fun as colleagues and friends.
Similar to Moo Jin, Sang Pil knows little of politics, but is thrown into an occupation in the field due to unforseen circumstances. Both dramas deal with protagonists in new jobs who navigate them with sincerity and grace. The found family trope is also strong in both dramas, and the characters have great sets of support systems around them!
Both dramas take place during Japan's emperial rule over Korea, and are packed with intrigue, humanity, sacrifice and love. Different Dreams is set in the 1920s, while Gaksital is set in the 1930s.
Investigation Couple and God's Quiz are both forensic dramas centred around two leads with different backgrounds: a male forensic doctor, and a female prosecutor (IC) / police investigator (GG), respectively. The two parts clash in the beginning of the stories, but learn to listen and learn from one another, as that is more fruitful in understanding the reasons behind cases of unnatural deaths.
Unnatural is set entirely among forensic pathologists, and the characters work towards solving cases of deaths with unnatural causes. 1/2 of our Investigation Couple, Baek Beom, is a forensic pathologist and his work contributes greatly to the cases Prosecutor Eun Sol works on. His work is shown in detail, similar to Unnatural.