Arms

Arms is a Japanese manga series written and illustrated by Kyoichi Nanatsuki. It was later adapted into an anime series. The story takes place in a post-apocalyptic world where a black market organization called 'ARMS' has created a new line of weapons that are human-like in appearance with the ability to transform into various forms of weapons. The main characters include Ryo Takatsuki, Hayato Shingu, Takeshi Tomoe, and Katsumata Tohru. The series explores themes of friendship, sacrifice, and the consequences of playing God. It is known for its mix of action, drama, and science fiction elements.