Ren

An 18-year-old young man with a big heart and challenging circumstances. Wields a gauntlet imbued with fire and lightning named "Kotaro."

Growing up in poverty and neglect due to his family's struggles, he has diligently looked after his little sister, Ryo, while their parents worked to pay for the treatment of her disease. A bit of an overprotective big brother who is willing to do anything to cure his beloved sibling.