Male toplessness.

A woman's clothes are forcibly removed, but she is covered by a blanket.

In episode 15, Light and Misa kiss (at 3:45 min)

A woman's bare back is seen while she bathes.

In episode 8 ,an adult magazine is shown briefly. Women in skimpy outfits are seen.

A man is run over by a truck. The aftermath shows blood.

A man bleeds to death.

A man stabs himself with a pen and blood sprays out.

A man is shot, and his body is full of bloody bullet holes.

A character shoots another one multiple times, mostly in the arm area. The latter starts bleeding, as blood drips down on the ground. He soon starts running while holding his wound, and is shown with blood on his clothes, but the focus isn't on the blood as the scene is emotional.

There is at least one death per episode, but it's often just implied, and if not, will usually be brief and not very bloody, since heart attacks are the most common method. However, there are some instances of shooting and sometimes blood is shown. Blood is seen, but it isn't used graphically.

Multiple characters die of forced heart attacks.

Fuck, shit, and ass are used sparingly alongside lesser profanity like crap.

Many uses of "damn" including "damn you" "damn it" etc.

Alcohol and tobacco use. Reference to "drugs"

A girl is seen kidnapped by criminals and held hostage.

A man's family is slowly destroyed over the course of years due to his selfish actions. This can be emotionally upsetting for some.