The World’s Strongest Old Man Goes Back to When He Was 15 Years Old – He Aims to Become Even Stronger and Fight in a Modern Dungeon!
- JP
- Action
- Adventure
- Comedy
- Drama
- Fantasy
- School Life
On that day, Renya Shindo, the world’s most powerful psychic, died. He was defeated by Zoguas, an invincible monster, and was killed in cold blood in a dungeon. When he woke up, Shindo had returned to the world of 21 years ago. His body had been rejuvenated to the age of 15, and he had…
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