Seiya RYUUGUUIN
Seiya Ryuuguuin is a hero who was summoned to another world to defeat the demon lord. He is a ruthless and analytical person who is not afraid to use violence to achieve his goals. He is also a skilled swordsman and magic user, and he has a variety of elemental powers at his disposal. However, Seiya is also extremely cautious, and he often overthinks things to the point of paralysis. This can sometimes lead him to make mistakes, but it also makes him a very formidable opponent.