Lily’s Boy - SomewheresSword

Hi, I have a question that I hope you guys can help me with. I just started (as in, I’m on chapter two) the fic Lily’s Boy by SomewheresSword on AO3. It’s a long one, almost 800k words, and I was wondering if anyone knew how much time takes place in the fic? As in, it starts in Harry’s third year but what year (if it’s even a Hogwarts year and not after) does it end? I ask this because it’s a Drarry fic, so obviously romantic things’ll happen- but I don’t know if I’m comfortable reading about the romantic life of a 13 year old while they don’t get older?

Idk, it just sometimes weirds me out what the characters will do romance/sex wise when they’re imo very young😅

I’m really excited to read this fic, so I hope it expands over several Hogwarts years