Dragonblood Alchemist - Episode 9

A dropout named Lena uses her old ID card to sneak back onto campus, where she is questioned about a piece of Dragon Blood Ore. She deduces the ore is fake because its vein patterns look unnaturally regular. Students notice her and try to have her removed, but Lena's professor arrives and inspects her repaired Iron Puppet. He challenges her to enter it into the campus combat tournament. In the arena, Lena's opponent appears to be an E-grade puppet, but as the fight begins, she realizes it is a far more dangerous refined-iron puppet, meaning she has gravely underestimated her challenge.