Faylin Raichōka, bearing the official title "Raichōka" (雷蝶花) meaning Thunder Butterflower, is a Thunder Magical Hunter who travels with Hagan as part of his core group. She joined his quest to liberate hunters sealed within cards following a significant historical incident. Her combat skills are utilized in decisive battles against adversaries like the King Monster, and she contributes to missions involving the infiltration and destruction of enemy strongholds, including a base associated with darkness. A notable phase in her development occurs when identified as the "Child of Creation," exploring her resolve and determination, underscoring her evolving team role and personal commitment to their objectives. Faylin remains an active participant in the group's major confrontations, including operations at Meiō Castle and conflicts involving divine or supernatural entities, consistently aligning her actions with the team's efforts to restore balance.