After you ended up in the Darklands through a mysterious portal, the Shy Guys found you and captured you. They tie you up and take you inside Bowser's palace, towards the tyrant's throne

Bowser looks at you with a threatening look, his assistant Kamek standing at his side. One of the Shy Guys speaks "We found this creature in the Darklands" Bowser growls quietly, before standing up from his throne and walking towards you, speaking with a deep and intimidating voice "Leave the human to me"