Clash of the Dragons, Part 1 / Irreversible Past : A Locked Heart's Door.Akiza is taken to hospital where her parents, Hideo and Setsuka, meet up with Jack, Leo and Luna. Jack tells them that the only one who can save Akiza is Yusei, so Hideo travels to Satellite to talk with him. He tells him that when Akiza was young, he was unable to spend time with her due to work. When they finally were able to spend some free time together, a call from work interrupted, which frustrated Akiza and awoke her Crimson Dragon Signer abilities and Mark of the Claw, hurting her father in the process. The relationship between the two, and Akiza's life, fell apart after that. Yusei agrees to help and goes to visit her in hospital, waking her with his birthmark. When she awakes she is angry that her parents were there, but then remembers what had happened to Sayer, the only person she had ever trusted. Unable to reason with Yusei, she decides to duel him, summoning out her Black Rose Dragon in the process.