Lyra Kiskill, a female character distinguished by her purple hair, materializes as a mysterious girl on an Okinawan beach during Ren's summer trip. She urgently pleads for his aid before vanishing abruptly, compelling Ren to seek out her identity and the meaning behind her desperate request. The mystery of her true nature and the reasons for her plea define her enigmatic appearance.

Within game mechanics, Lyra wields the Null Warp ability to ignore warp obstacles and Healing Prayer, which sporadically restores health. Her combat style involves connecting to teammates via a plasma beam attack through her Bump Combo. Lyra evolves through multiple forms, gaining enhanced powers like Super Null Warp, Super Null Damage Wall, Null Magic Circle, Bump Combo Boost, and a potent All-Enemy Meteor Strike. These evolutions significantly improve her stats and unlock the Connect Skill First-Hit Slayer, requiring specific party compositions for activation.