Regression Life of a Retired S-Class Mercenary

Embark on a thrilling journey with 'Regression Life of a Retired S-Class Mercenary' as it delves into the life of a legendary soldier who transitioned into a peaceful retirement, only to find himself facing an unexpected regression after a mysterious death. Explore the complexities of his past life as a mercenary and witness the challenges he encounters in his new reality, blending action, mystery, and introspection in a captivating narrative.