SHANGHAI, June. 5, 2023 /PRNewswire/ -- One Punch Man - The Strongest, the official turn-based strategy mobile RPG licensed by and adapted from popular Japanese anime series ONE PUNCH MAN, published by Shanghai Moonton Technology CO., Ltd, starts pre-registration now in US/EU regions. And One Punch Man – The Strongest will also launch the closed beta on June.18th.(PRNewswire)One Punch Man tells the action story about Saitama, who became a hero for fun. After 3 years of special training, Saitama finally gains the ultimate strength.