As monsters continued to fall one after another to Fontaine, they devised a plan to defeat her—capture Sawamura Yuna, who was always by Fontaine’s side, and force her true identity to be revealed. One day, Yuna was attacked by monster underlings. She desperately hid, transformed, and managed to defeat them. But immediately afterward, a snake demon and a bee demon appeared and stabbed her thigh with a venomous stinger. Barely escaping, Fontaine endured intense pain, but since the stinger kept releasing poison, she had to undergo surgery. However, due to her body's resistance to anesthesia, she could only endure excruciating agony as the stinger was removed. Pushing through the pain to protect the city’s peace, she returned to the streets before her wounds fully healed. Encountering the monsters again, Yuna transformed into Fontaine and fought back, but was captured and taken to the monsters’ hideout. Her injured thigh was targeted, putting her in a dire situation. Unknowingly, her hidden fetish was discovered by the demons. As they tormented her thighs, they simultaneously stimulated her groin, driving her to climax. Ultimately overwhelmed by the monsters, she met a BAD END.