Shin no Nakama ja Nai to Yuusha no Party wo Oidasareta node, Henkyou de Slow Life suru Koto ni Shimashita

Synopsis

Upon discovering what Ares is up to, the heroes converge upon his position. Bui is attacked by Danan, whom he critically wounds with Ares' help, and reveals himself as Shisandan. They reach the chamber containing the artefact they're looking for: Five sword blades, siblings of the Sacred Sword wielded by Ruti and - like Ruti - renmants from the time of the first Hero. When Red's group reaches them, the two attack, attempting to kill Red and use the Sacred Swords to sway Ruti back to her role as the Hero. Theodora appears and attacks Ruti to steer her back onto the Hero's path. Rit protests against this, pointing out that the one carrying the Hero's Blessing is not the world's sole savior, but it is really the will of the people that makes somebody - anybody - a hero. Red, Ruti, Rit, Tisse and Godwin rise against their enemies; Red kills Ares, but Shisandan tricks Ruti into touching one of the Sacred Blades, subjecting her to her Blessing's compulsions. Under this urge, she attacks Red, but her blow is taken by Tisse, critically wounding her.

(Source: Wikipedia)