@MonsterKaido I think Kaido will stand up either after a flashback or after some quick thoughts about the past.
He will remember Xebec saying some shit to him such as: "When did you stop believing in yourself?" or "Have some pride in yourself you are an Oni". But not in this typical shonen teacher way because Xebec was not soft or anything. It will motivate Kaido to stand back up realizing he's been telling himself that he will stop advancing once he meets Joyboy.