y/n is oncelers neighbor and girlfriend before he goes off to find the truffula forest. y/n goes along with him while he goes on his journey to find the perfect material for his thneed! when onceler finds the truffula forest, he makes his first thneed. indeed, he did not sell on his first day, but eventually, everyone loved it. your mortal enemies, his family comes to help him, when his buisness starts booming. eventually your sweet onceler gets caught up in all his greed, he starts acting completely different... can you take much more of it..? (photo isn't mine!! all credits go to @alissarudd2816) this is a fem reader..<3