Genau in Frieren: Beyond Journey's End: Complete Profile Guide

■The Divine Revolte Arc
Facing Revolte, who had previously killed his former partner, Genau fought alongside Stark. After an intense battle, he succeeded in defeating Revolte despite suffering a grave wound that pierced his body. He later recovered through Methode’s magic and departed with her on an escort mission for the knights.

Source : Frieren: Beyond Journeys End Official Web Site