Suck kudasai

A young man with brown hair and green eyes grips a sword, his expression shifting from determination to shock as he draws it, revealing a glowing, damaged blade with red markings. He stands with three other characters—a blue-haired girl, a girl in a wide-brimmed hat, and a blonde girl—on a stone-paved area, reacting to the sword's condition. The scene cuts to a large, skeletal dragon head mounted on a pillar, its jaw open and teeth bared, with a circular mechanism behind it.