Lot's of discussion of love and sexuality.

Some kissing, groping, ect.

A woman's clothing is frequently damaged from battle, exposing her bra and/or bare skin.

An adult teacher had a physical relationship with a middle schooler, and continues to pursue them into high school.

Scenes of destruction and ruin.

Lot's of talk by soldiers about how they know they are going to die and their various reactions to it.

Some soldiers die onscreen, blood is present in some cases.