It started out as a very uneventful day for Mt. Lady as she made her patrol while 30 feet tall. "While I don't mind the attention when I'm big, this feels so boring!" she said. "I mean, it's not like a giant villain is just going to appear right in front of me!"

Suddenly, a purple vortex appeared in the sky, and Mt. Lady went to where it was to investigate it. When she was at the vortex, Mt. Lady saw something coming down from it. One of them was a giant war hammer, and then she saw something that looked human coming down.

What was falling was a giant brunette with her hair in twintails wearing an orange suit. A building ended up getting crushed by her bottom after she fell. "Ow!" said the girl. "That really hurt!" She looked around to find herself in a very unfamiliar setting

"Where exactly are we?" she said. A man with silver hair popped out of the girl's cleavage. "I don't know where we are, but I can see someone just as big as you standing right in front of us," he said.

"Are you all right?" said Mt. Lady. "I never thought that I would find another person with the Gigantification Quirk!" The girl replied, "Quirk? I don't know what you're talking about, but it's natural for giants like myself to be large." She stood up and brushed the debris from her behind.

"By the way, my name's Diane," said the giant twintailed girl. "The man I have with me is someone I met during one crazy adventure I had. It's a long story, really." Mt. Lady replied, "A pleasure to meet you both. I'm Yu Takeyama, or as I'm known by my hero name, Mt. Lady."

Diane told Mt. Lady about her adventure and how she ended up where she was now, and Mt. Lady told Diane about the world she was in involving Quirks, heroes, and villains.

"This must be a very nice world you live in!" said Diane. "You think I have what it takes to be a hero?" Mt. Lady replied, "Well, that hammer of yours looks like it can really do some damage, but I would like to see your strength alone."

"I'll show you what I'm capable of!" said Diane. "Just watch me!" She put down her hammer, took the silver-haired man from her cleavage and placed him on the roof of a building. "Hopefully you'll be out of harm's way." The silver-haired man said, "I can tell that this is going to be quite a show."

Diane came at Mt. Lady with a series of punches that were blocked by her. "Not bad. Not bad at all," said Mt. Lady. "But pretend that I'm a villain, so come at me with everything you got." Diane replied, "Okay then."

She picked up a tree and swung it at Mt. Lady as if it were her hammer. The force of being hit with the tree caused Mt. Lady to be flown backwards, into the League of Villains' hideout.

After she got up, Mt. Lady found that three villains were stuck to her butt: Kurogiri, Toga, and Shigaraki. "I'm sure the other heroes will take care of them," she said. "For now I've got to show a would-be hero the ropes." Mt. Lady brushed the villains off of her booty, picked up a car and ran back to Diane.

When she went back to Diane, Mt. Lady threw the car at her and Diane hit the car with the tree. However, the car exploded after she hit it and the tree caught on fire, making her drop it. Mt. Lady came at Diane from behind as she was distracted and gave her a flying kick to her back, causing her to fly forward.

Elsewhere in the city, Mineta was just walking by as he was met by a giant shadow. He looked up to find Diane about to fall on him. Mineta's eyes widened and his nose bled before he was crushed by the giant girl's breasts.

Diane stood back up and saw Mineta stuck to her breasts. "Sorry about that," she said. "Don't worry about it," replied Mineta. "This is easily the greatest thing that has happened to me." Diane tried to remove Mineta from her breasts, but the balls on his head made it difficult for her.

When she finally got him off, Diane placed Mineta on a building, but one of his balls was still stuck on her boob. She took it off and handed it to the perverted boy. "Here you go," she said. As Diane ran back to Mt. Lady, Mineta clutched the ball tightly in his hands. "I will treasure this moment forever," he said.

Pretty soon, the battle became more intense as both giantesses gave all they had against each other. They both punched, kicked, and slammed each other into the buildings, inflicting collateral damage.

30 minutes later, the part of the city that the fight took place in was mostly destroyed with almost no buildings left standing. Mt. Lady and Diane stood by almost completely out of breath. "You know, you're not that bad," said Mt. Lady. "You're not so bad yourself," replied Diane.

Mt. Lady looked at the destruction that she and Diane caused during their fight. "I guess we got a little out of hand," she said. "I'll take full responsibility for what happened. In the meantime, there might be a spot for you. Welcome aboard." She walked up to Diane and shook her hand. "Thank you so much!" said Diane.

Meanwhile, the silver-haired man and Mineta were on a building that was still standing. "I feel like I'm going to like this world," said the silver-haired man. "Believe me," replied Mineta. "You're going to like this world as much as I do."

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