Traveling Through Time and Becoming a Portable Grandpa

Traveling through time and becoming a portable grandpa The young man who picked up the ring is a reborn person. He is ruthless, decisive in killing, has a strong ability to cause trouble, and has bad luck. He is a perfect protagonist template. Can the auxiliary protagonist reshape his body? ! The grandfather who was suffering from persecution paranoia thought for a moment and decided to observe carefully. "How can it be faster to seize the body than the personal teachings of the old grandfather?" "I would rather teach me to betray the world than teach the world to betray me!" "My lovely and amiable grandpa, I took away your body and gained your memory. I will definitely help you get revenge!" … Hearing the protagonist's hidden inner whisper, the old man was frightened and decided to start a counterattack...