Sono mono. Nochi ni... (Shinichirou Nariie)

Wazu is an ordinary 16-year-old human who shuts himself in a mysterious mountain after his childhood friend Aria gets married to another man. Two years later, Wazu started to possess a strong power that can help him beat up even high ranking dragons and demons. Because of the strange power Wazu possesses, many people started to question his true identity and tested him through many challenges. Can Wazu gain his peaceful back and fall in love again after all of the events?