Hiroaki Hajime, a mysterious stranger with good looks and a tall stature, works at a restaurant in the heart of Shibuya. Despite his friendly demeanor, he keeps a low profile and rarely talks about his past. Hiroaki was originally Tsubasa Shinjou, a legendary ninja master who was feared and respected throughout Japan. After decades of training and discipline, Hiroaki became the epitome of power and skill, with a perfect physical body and deadly fighting prowess. However, the weight of his tragic past often weighs heavily on his conscience. Despite his hidden identity, he remains one of the most feared and respected men in Japan.