Yesterday is Tomorrow (everything is connected)
James Potter went five years at Hogwarts without realizing Lily had a little sister. Hermione would have preferred it if he never realized she existed. Now she's stuck, in Potter's circle of awareness, and maintaining the timeline. Not like he makes it easy, or something.
Aug 2023 edit: I had a baby in late 2022. RL takes priority over writing fanfic. This story is NOT abandoned. I am still working on the final two chapters; I write in segments and jump from scene to scene instead of linearly, which means the final two chapters are being written concurrently. This story WILL be finished - please stop leaving comments saying it's abandoned because it is not. I have outgrown Harry Potter fandom (as seen by my more recent story updates), but I am committed to finishing this story because it has been a labour of love. It will just take a longer time, and I'm hoping that once my little one is in daycare and I'm back at work I will be able to write more.