Fighter was childhood friends with Warrior. She was greatly horrified when she witnessed his brutal death.
Although their relationship was not further explored due to their early demise, it can be assumed that they were in good terms with each other as they were part of the same group. Fighter expressed confidence in Wizard's magical abilities to Priestess. Fighter was greatly concerned for Wizard when she was fatally stabbed with a poison knife by a goblin and did not hesitate to protect her and Priestess by attacking the goblins.
Although their time together was short, Fighter was friendly towards Priestess. While she was being stripped and about to be gang-raped, she tells Priestess to leave her and save herself and Wizard. When Priestess returns with Goblin Slayer, she cradles Fighter gently close to her.