In episode 1 a woman is shown entirely naked during a shower scene, while a couple of other episodes shows the same woman partily naked.

A lot of characters get killed by lasers.

a few moments of "damn", "hell", and some other ones blurted out.

A bar scene in a few episodes, as well as couple of sake and wine drinking scenes. Minimun use of smoking as well.

Kids might find the floating corpses to be scary. Including one scene that involves one of the corpses taking out a person's heart.