Well, now that WW reduced Ella's age by a year or a few months, their meeting lines up, timeline wise. MC got into his accident at 12 to 13. Ella got turned at 14. So she was 15 to 16 when that happened to MC, which was slightly inconsistent with the events. Originally, she was 3 years older than him, which means she was turned a year before his accident. Now, she's only 2 years older than him and was turned around the same time since she's now 20, instead of 21.
So basically, these events happened in the same year now, roughly.
- MC (12-13) got his scars and ran away.
- Ella (14) got turned into a Superhuman.