One of the two girls who move in with Basara. She secretly harbors the identity of a succubus, adding complexity to the master-servant contract and their shared living arrangement.
Step-siblings with a master-servant dynamic; Maria's betrayal in S1 leads to redemption and shared tournament battles in S2.
Their step-sibling relationship undergoes severe strain due to external manipulation and conflicting loyalties.
Maria's betrayal directly leads to Mio's capture, fracturing their familial bond and driving the mid-season crisis.
Maria's betrayal directly enables the enemy's capture of Mio, aligning her temporarily with Zest's faction.
Maria and Basara maintain a relaxed step-sibling dynamic that contrasts with the more intense contracts.
Explore the full interactive character relationship map of The Testament of Sister New Devil