Strengthening the bond also increases the character's strength. Players can create special bonds with these characters by giving equipment to them. Additionally, over 300 non-player characters appear in the game, with all of them being recruitable to join the player's party. Characters can be customized through in-game character creation, with gender, height, figure, weapons, and physical appearance changeable. While HF is played like a role-playing game and LS like an action role-playing game, HR is based on HF 's style, but with action elements integrated. Unlike in Sword Art Online: Hollow Fragment and Lost Song, a party in Hollow Realization consists of four characters including the player, instead of three.
