Parents guide

Female characters wear revealing outfits, and characters such as Hilda, Manuela, and Female Shez have cleavage showing

The character Sylvain is seen constantly flirting with female characters, even when they're clearly uncomfortable

Both Hubert and Monica are implied to have romantic feelings towards Edelgard, although it's much more obvious with Monica, who outright states that she loves her.

Dimitri is implied to have had feelings towards Edelgard in their youth. It's worth noting that Dimitri and Edelgard are technically step siblings

A female character asks another female character if she may "hold her in her arms", this line is spoken in an unintentionally suggestively manner

Multiple characters are implied to have crushes on each other

The character Kronya wears little clothing, although it's not too explicit by Fire Emblem standards

FEW3H Is a warriors game, and is a hack and slash with tactical elements present in it. The gameplay itself is combat based, although no blood is shown and enemies simply disappear when defeated. Most of the more intense violence is relegated to cutscenes that you can skip.

War is the main theme of the game

The main character is a mercenary

Genocide is mentioned