Mikan arrived at school one morning, and all the classmates greeted her because she was a very nice girl.

"Hey Mikan!" Aoi shouted in the halls. Unfortunately, while she was a nice person, she wasn't exactly the most socially outgoing, as she just gave a slight wave and an awkward smile before shuffling off to her locker. As she looked through her locker, Sonia Nevermind came up next to her, opening her own locker.

"Hello Mikan! I hope you are having a good morning!" Sonia said to Mikan. Fortunately for Mikan, Sonia was one of the few people in Hope's Peak Academy that could get Mikan to fully communicate with them. Mikan turned to face Sonia and replied, "Yes! I'm doing fine thank y-" She was cut off by Teruteru's loud gasp that came from right behind her. She turned behind to check on Teruteru, who was currently flat on the floor.

"Ah! I-i-I'm so sorry! Please forgive me!" Mikan told him through her worried voice.

"Oh, um no worries, after the whole shock of falling on the floor, I appreciate the feeling of your derriere…" Teruteru replied back, blood dripping from his nose.

"U-Um, what about my butt..?" Mikan questioned.

"Now that you mention it, I don't mean to come off as crude but, your butt seems, how do you say, larger than usual?" Teruteru answered.

"WHAT!? Oh nonononononono!" Mikan shouted as she ran off to the bathroom.

"Mikan! Wait!" Sonia said as she followed after Mikan. When Mikan arrived in the bathroom, she started to feel up her buttcheeks, and she realized that her butt had gotten bigger since yesterday. She was about to cry because she knew that her butt was already big enough to make boys go crazy, but now it was gonna get harder to hide it. Sonia came into the bathroom to calm Mikan down.

"Mikan! Everything will be alright, it's just a small growth spurt, there's no way your rear end will get any bi-" Sonia attempted to tell Mikan, right before she saw Mikan's butt grow a bit once again.

"Uh-oh." Sonia said to herself.

"Wait, did it grow again!?" Mikan questioned.

"This is certainly odd, but I know a way to fix this." Sonia reassured Mikan, pulling out a pair of jeans. Mikan went into a stall, took off her skirt, and struggled to put on the jeans over her butt, but she managed to put them on fully. Looking in the mirror, it seemed that her butt looked normal sized.

"I know that you are self-conscious about your rear, so this will minimize the effects until we can find out why this is happening." Sonia said to Mikan.

"T-t-thank you Sonia!" Mikan replied as she hugged Sonia. The bell rang and it was time for them to get to their classes. Aside from a few comments about how wearing jeans was different for her, Mikan went about her day like usual. When lunch approached, she went to try and find Sonia in the lunchroom. As she was looking out for her, she felt her butt get bigger again. Her jeans were not tearing up at all, but she could feel her jeans stretch and struggle.

"Oh, Mikan!" Sonia signaled from a lunch table. Mikan walked over and she updated her on the situation.

"I think that Korekiyo can help you with your predicament. Don't ask me how, but I do believe he has his ways." Sonia told Mikan.

"Yes! Thanks for helping me, I can't wait to get back to normal!" Mikan said to Sonia. The two of them walked out of the lunchroom together, but as Mikan walked to the doors, Mikan felt a rip in her jeans. Then, as quickly as it started ripping, her jeans opened, revealing her now massive butt to all of the students. Hiyoko, being the bitch that she is, stood up, pointed at Mikan, and shouted, "Hahaha! Mikan's got an ass that can swallow up a G-string!" Weird Kanye West quote aside, Hiyoko's comment caused a large amount of laughter across the whole lunchroom. Mikan's face was absolutely frozen with shock as Hiyoko came up to her and started touching her butt.

"N-n-NO! STOP LAUGHING!" Mikan shouted.

"Hahaha! It's like two huge beach balls! You stinky pig!" Hiyoko shouted at Mikan. Mikan started to try and turn her butt away from Hiyoko, shouting out, "STOP STOP STOP" Everything started to disappear from her vision and she woke up in her bed. She was sweating as she looked over to her clock, which read 7:15 am. She stood up from her bed and started squeezing her buttcheeks, realizing that they were the same size as usual.

"Ah, it must;ve just been a nightmare. Good." Mikan said to herself as she left her room to go downstairs and have breakfast.

END OF CHAPTER SEVEN