Gaowu: the Angel of the Beginning of Awakening, Emperor Keke

Lin Shi, an earthly otaku, travels through the world of high-level martial arts. On his awakening day, he is actually judged to have the most useless F-level talent—dual-gun weapons? But no one knows that sleeping in the simple revolver is the angel of time control "Emperor Keke"! Swallow the enemy's life and turn it into sand of time; a single shot can go back and reverse life and death; with thousands of clones, one person can become an army! His mother was kidnapped, his father died tragically, and his sister slept for three years... In this life, he used time as a blade and vowed to crush his eternal enemies!