Holy Valkyrie ExS-TIA TS Parallel Episode 3 Twilight Sabre

As the ExS-TIA face defeat at the hands of Naioro, Souma Shihou activates the ExS-TIA system and manages to bring him down. But due to some reaction with the device, Souma’s body is transformed into that of a woman’s. With Marina and the others still out of commission, Souma takes it upon himself to battle the remaining monsters.