The title "Manga Yuusha ni Minna Netoraretakedo Akiramezu ni Tatakao Kitto Saigo wa Ore ga Katsu" roughly translates to "The Hero Has Been Trolled by Everyone, but I Don’t Give Up and Will Fight Until the End; I’ll Definitely Win." This gives a hint about the story possibly revolving around a hero who faces trolling or adversity but remains determined.
To Kaito's surprise, instead of attacking him, Akeo proposed a duel. Akeo had grown tired of being the sole hero of Eridoria and sought a challenge. Kaito, seeing an opportunity, accepted. The title "Manga Yuusha ni Minna Netoraretakedo Akiramezu