Renya sees a woman in armor that we saw earlier and immediately throws a knife at her. Her helmet comes off revealing it to be the immortal witch C.C. She offers Renya a Geass contract and he accepts it despite being initially hesitant. Before she can seal the deal Dash’s trap activates and prevents Renya from getting a contract.
Dash created this trap when he encountered Renya as a child. So Renya instead receives a cursed arm and during his fight against Isshin, it’s revealed. Isshin cuts off Renya’s arm and the cursed arm replaces it. Renya uses the power of the arm to drain the life force of Isshin and heads to save his friends.
Renya’s friends meet Alto Weinberg who is disgusted by the unnecessary killing of the villagers. When one of his friends Misuzu demands that the killing stops Alto makes a deal with them. If one of them dies they can all leave. Clara decides to kill herself to save her friends but tries to trick Alto and stab him. Alto easily stops her and removes her wig revealing her to be Clair li Britannia the heir to Britannia.
Renya arrives at the same time this happens and wants to save Clara. Naturally, he opposes Alto and challenges him to a fight and during this fight the annoying mercenaries are killed in the process. The fight ends with Mesh interfering and capturing Clara.
With nowhere to go and the army approaching Renya and his friends decide to team up with C.C. and Alto to save Clair. During their journey, they run into Futaba Summeragi Kaguya’s great, great, great, grandmother. Futaba seeks revenge for brother in law Isshin she wants Renya dead. Futaba fails to kill Renya and makes a fool of herself and runs away.
She has an audience with Mesh to ask for his help to defeat Renya. Mesh rejects this offer and instead imprisons her along with Clair. Renya and Alto head to the same village and successful draw out Mesh to fight them. During the fight, Futaba escapes and saves Clair in the process. As the fight continues Mesh realizes that he’s at risk of losing so he flees from the battle.
The entire group reunites and to prevent Mesh from coming back to grab Clair Renya heads out to finish Mesh. Renya went with the intention to die and almost did if Alto had not shown up to save him.