Mainly Naruto, with out-of-character portrayals
Question: What would it be like to have a sharp-tongued and strict System?
Six-year-old Obito: I'd get put down every day until I cried.
On his first night with the System, little Obito learned that he would never become friends with Kakashi and cried so hard his nose was running. On his second night with the System, Kakashi and the System both roasted him, and Obito got sand in his eyes... On his nth night with the System, Obito learned that his future self would be a pervert and became one ahead of schedule.
Main pairing: Obito and Kakashi. Secondary pairings: Hashirama and Madara, Sasuke and Naruto.
Hashirama and Madara have a child, and the story includes lots of memes.
Theme: Everyone has the potential to become a hero