第 1 巻 (全 25 巻): TSUYOSHI 誰も勝てない、アイツには (Series) favorite_border

[DeepL Translation - needs review] Introduction to Volume 1: The person to whom those who seek the "strongest" will surely turn.　His name is TSUYOSHI.　Who is he, who is shrouded in mystery except for the fact that he is the "strongest"?

(Translator: DeepL)