Toad stared at the orange, flowing liquid that would tear his skin in a matter of moments. He knew that no one would notice his disappearance as he was just one of a million of the species that populate his "home"; the Mushroom Kingdom.
His only purpose, as a small, pathetic toadstool, was to serve the princess. This princess saw him as nothing more than a servant, not acknowledging his appearance, never thanking him for support, and even putting him through hell at the Smash Bros tournament as a shield.
He still remembered the day he attempted to save the princess himself, he made it so far only for the plumber to show up to save the princess himself. When he attempted to inform the princess of his ruined quest she, of course, didn't acknowledge him in the slightest... his quest, in the end, was a complete, utter waste.
The toadstool was the pipsqueak of racing, as he always ended up below 7th place and often fell off the track with the completely ignorant Lakitu taking forever to set him back on the road. If he ever managed to accomplish the task of winning a race, it would be ignored, forgotten, and seen as nothing.
Toad was forbidden from joining the Olympic Games events with his so-called "friends" and the hedgehog and his crew from another dimension, with one lousy exception coming from the most recent event; being a guest in the 4x100m relay, which nobody of course saw as anything special. This also applied to the Smash Bros, Basketball, among other events that the plumber, princess, and others participated in.
No matter what the mushroom tried, no one would care, nobody would recognize, he would never be seen as a hero; just one of the many Mushroom Retainers that guarded the kingdom and nothing more.
But the one occurrence that hit him hard, the only time he was recognized, leading him to the place he was at currently, came from the princess, the plumber, and the main threat themselves. They all told him that he was nothing more than a hindrance, an annoying brat that is only there to support the plumber, a servant that, according to the princess, does nothing to help her, and a worthless little toadstool that never deserved to exist.
He took these words hard, and thought for the next few days to finally do it. He left the Mushroom Kingdom without questioning, knowing that nobody would seem to care that he was gone, and headed to the fiery landscape that was Bowser's land. He found a dark area with a pit of burning, orange liquid leading to where we are now.
Before deciding to jump into the pool, he snatched a molten rock with his bare hands and started scraping on the walls a message, something that nobody but him would view and remember. His hand was scalded from the hard work but he didn't care. He looked at his message with a tear rolling down his face; a rare occurrence.
THANK YOU MARIO, BUT MY WORTHLESS, PATHETIC SOUL IS IN HELL.
Being mistaken for the kidnapped Mushroom Retainers was something that bothered him deeply, writing the message made him angry and satisfied at the same time.
The message burned into his mind like flowing lava as he turned to the pit and prepared to jump. Tears rolling down his face, knowing that nobody would miss him, as they would easily find another toadstool to take his place.
"YOU'RE WORTHLESS, TOAD."
He leapt in, burning away from existence.