Soul Resonance!

Having spread out Traitors across Death City, Shaula unleashes her magic, making the Traitors more powerful whilst also ordering some of them to kill themselves as she sees fit. Shaula then sends Meme to kill Tsugumi and Anya, with Anya attempting to subdue her to give Tsugumi the chance to administer the antidote. Overcoming her fears, Tsugumi manages to break open Meme's guard and administer the antidote via a kiss. Whilst it doesn't appear to work at first, Tsugumi risks herself to get Meme to remember the times they've spent together, managing to perform a Soul Resonance with her and break her free from Shaula's mind control. Tsugumi then makes the decision to make both Anya and Meme her official partners, believing the three of them can resonate together. Using the remnants of Meme's link to track down Shaula, the girls perform a three-way Soul Resonance to bring out Tsugumi's true form, combining all of their strengths to defeat Shaula, returning all of the infect students back to normal. Some time later, after Anya sorts out some royal business and Meme gets a medial check-up, the two return back to Tsugumi, who has been studying hard whilst waiting for her partners.