Iris

Iris is one of the main female protagonists in the Shikkakumon no Saikyokenja series. Also known as the "Black Dragon Iris", she is one of the oldest and strongest Dragons still alive. In her human form, Iris has the appearance of a young girl, with both her hair and eyes colored red. In her dragon form, Iris has the appearance of a black dragon with a size suitable for any dragon. In addition, she keeps her red hair tied in two huge pigtails and her mouth has two dragon horns on the top of her head, and her mouth is huge and has typical sharp teeth. Despite this, Iris remains bipedal and rarely quadruples. Iris first comes off as a threatening force of nature. However, when she learns that she just attacked Gaius's reincarnation, she immediately starts begging for her life. In addition, Iris usually behaves like any Tsundere. She also doesn't like it when someone makes fun of or makes fun of the size of her boobs.