Haruna Usami is a supporting character in the FanFiction High School DxD: True Maou written by demonicjester01. She is a second-year student at Suisou Academy, a neighbor school to Kuoh Academy, and has a contract with Aslatiel Bael, summoning him regularly after their accidental and awkward first meeting. Despite being a completely normal human, Haruna becomes one of Aslatiel's closest friends and love interests, which in turn makes her vulnerable to threats from the supernatural world.