Ouroboros (2015)

Similarities:

- Corrupt politicians
- Dark side of police force
- Broken main characters
- Well developed and constructed characters
- Well developed and constructed plot
- Main characters aren't saints
- Oguri Shun is in both
- Amazing action scenes

If you like one, you'll like the other. Both series centers around revenge. The male leads in Ouroboros are very smart and good at fighting, and in sakura no tou, the male lead is very cunning and manipulative.

Both of them has a dark side of police force.
Each episode add clues for main plot.

It literally have the same vibe (and same Ikuta Toma!), two Cops trying to make justice in their own way, a hidden group inside that hunts high lvl criminals, hopefully Daimajin also will be as amazing as Ouroboros!

A lot of similar elements between two dramas such as revange, mafia, police, undercover etc. Both dramas are very dark.

Both dramas follow the tale of protagonists who dedicate their life (aka career) to taking down a criminal who wronged them during childhood. Very fast paced and entertaining!

Hanzawa Naoki is set in the banking industry but the story is intense, shocking, and exciting to the very last episode just like Ouroboros. There isn't as much physical action mainly because Ikuo and Tatsuya were at actual crime scenes most of the time, but I believe anyone can enjoy Hanzawa Naoki's story.

Oguri Shun and similar detective story. Cracking cases together and finding to catch the killer of a loved one

They both have morally questionable characters. The stories are tragic and violent. Both have a teamwork style dynamic between the main leads.

Both of these drama have a darker feel. They are based on popular seinen mangas. Each features lead characters that take justice into their own hands by dealing in the crime underworld.

Both deal with smart, butt-kicking detectives that will do almost anything to catch the criminal. Also, the male leads in each have a hidden, dark past.

Both dramas have brothers who have adults they care about killed thanks to evil people. In both dramas the brothers grow up and take very different roles in order to take revenge for what happened to them in the past.

Both have a similar plot where the death of someone close to them causes the main characters to seek revenge. As the story progresses, the characters begin to learn more about the past and the events behind their loved one's death, and the only people they can trust are each other.

I recommend this both drama because , Male lead and Female lead
try to solve problem
In one drama explosion and another student murder/suicide

Ouroboros is much darker and has deeper plot lines than Bitter Blood, but they have the same feel. They are both about crimes with underlying relationship plots.

In both the hero need to remember his tragic past and both drama are very very good so when you search drama, go see this awesome one.