Mystery/thriller jdrama I'd recommend

A high school teacher takes an entire class hostage to find out the truth regarding a suicide of another student.

Time traveling manga artist gets a chance to save people in his life by going back in time.

The story about a company which deletes all files the client wishes upon their confirmed demise, led by a wheelchair bound ML.

Remains of 13 children are found on an estate and it becomes a trigger point for unraveling what went on behind closed doors.

The story follows an unlikely partners teaming up to survive dangerous games in order to keep on living.

Deep delve into the past of three girls and their heinous acts in the name of the greater good.

A man breaks down a family in order to attempt to save both them and himself.

Four people hide the truth about what happened 15 years ago.

A bureaucrat demoted to a private school leads a class of seniors onto discovering how the education system can be changed through the lens of the butterfly effect.

A college student gets accused of committing a murder, but suddenly finds himself aiding the police rather than being a suspect.

A family's life is turned to turmoil after an accident as their greed gets the better of them.

Psychological thriller depicting a serial killer and the lives of his victims. Excellent cinematography!