死に戻り、全てを救うために最強へと至る (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: The path to the most powerful. It is the path to save everything. Family, childhood friends, best friends, and - the love of his life. Eric, who has lost everything, despairs that there is no meaning to life in this world and commits suicide. However, he wakes up when he is supposed to be dead, and when he takes stock of the situation, he finds that he has become a baby! I thought it was called reincarnation, but I don't even know why...