Siheyuan: After Awakening, I Got a One-Hit-Kill System

Zhou Chengjun wakes up as an abusive monster. Facing his trembling wife and daughter, he drops to his knees and repents. After binding himself to the Chinese Brand Instant-Kill System, he can shop anywhere without coupons or ration tickets. In this life, he will be a good husband and father, and make all the monstrous neighbors see him in a new light.