Haruaki Kurama trained under Makoto Yanagi alongside senior disciples Jingi Sagawa and Aka Ibuki. Ten years before the main events, a volcanic eruption caused by a dragon spirit ravaged the Ayaka Islands. Makoto Yanagi perished confronting this threat, leaving Haruaki and Aka with burn scars; Haruaki's scar is notably large.
After Makoto's death, Haruaki assumed the role of head priest at Kasen Shrine. He strictly upholds traditional methods for pacifying dangerous Ara-Mitama spirits, adhering to his master's teachings of respect and harmony preservation. This commitment is reflected in his consistent traditional shrine attire. His philosophy directly opposes Aka Ibuki's modern approach of consuming Ara-Mitama, creating a deep ideological rift between them.
Haruaki mentors two young disciples, Chatarō Fukuwake and Yako Amano, guiding their development as Ley Masters. He fosters their abilities in fire and wind magic to pacify spirits, prioritizing their growth alongside the shrine's duty to maintain the islands' spiritual balance. He frequently mediates their rivalry and coaches their teamwork during encounters with Ara-Mitama.
His conflict with Aka Ibuki erupts during a joint mission to protect younger Ley Masters, Yukito Yanagi and Ibara Ichijō, from multiple Ara-Mitama. After pacifying several spirits, their fundamental disagreement escalates into a magical duel. Aka attempts to consume a remaining Ara-Mitama, prompting Haruaki to intervene with his wind magic, exposing unresolved tensions rooted in their master's death and their perceived failure a decade prior. Jingi Sagawa occasionally mediates these clashes.
Haruaki carries profound guilt and regret over Makoto Yanagi’s death, internalizing a sense of weakness from the past. This regret fuels his dedication to tradition and his mentorship, driving him to honor Makoto’s legacy. His prominent burn scar serves as a constant physical reminder of this trauma and his unresolved emotions.