by leahsaber10
In their 3rd year at UA, Izuku and Mina take Eri out for ice cream and run into trouble. Eri had thought she had a good hold on her quirk, but in her panic, she accidentally regresses Izuku and Mina into their Middle School selves. Not only that, but they are thrown through a portal that lands them in the house of a grouchy old man.
Stan Pines doesn't really know what to do about three children from another dimension. In his experience with portals to other realities, he figures it is likely that they will all be in this situation for the long haul. With that in mind, he lets them stay at the Mystery Shack, and maybe forges some adoption papers.
Words: 7278, Chapters: 2/?, Language: English
- Fandoms: Gravity Falls, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
- Rating: General Audiences
- Warnings: Creator Chose Not To Use Archive Warnings
- Categories: F/M
- Characters: Midoriya Izuku, Ashido Mina, Eri (My Hero Academia), Stan Pines, Jesus "Soos" Alzamirano Ramirez, Wendy Corduroy, Waddles (Gravity Falls), Bill Cipher
- Relationships: Ashido Mina & Midoriya Izuku, Eri & Midoriya Izuku, Ashido Mina & Eri, Stan Pines & Midoriya Izuku, Stan Pines & Ashido Mina, Stan Pines & Eri, Bill Cipher & Midoriya Izuku
- Additional Tags: Rewind Quirk (My Hero Academia), Dimension Travel, Protective Stan Pines, Protective Ashido Mina, Big Sister Ashido Mina, Trouble Magnet Midoriya Izuku, Brother-Sister Relationships, Ashido Mina and Midoriya Izuku are Siblings, Stan Pines is a good gaurdian, Mystery Shack (Gravity Falls), Age Regression/De-Aging, Protective Eri (My Hero Academia), Midoriya Izuku is a Ray of Sunshine, Midoriya Izuku is a Problem Child, Eri Has PTSD (My Hero Academia), Mentioned Aizawa Shouta | Eraserhead, Gravity Falls Is Weird, Fluff and Humor, Crack Crossover, Bill Cipher Being Bill Cipher, Aged-Up Eri (My Hero Academia)