To explain the title... Karasu means 'crow' in Japanese and the main protagonist in Air Gear is often called Karasu-kun by Simca. And so...
Plot format? Fairly simple... insert another poor abandoned/abused male character into Ikki's role at a young age and have him be adopted by the four Noyamano sisters and get him into the world of Air Treck at a younger age (when the Sleeping Forest group is still around and kicking). After staying with them for a while and growing up, toss the guy back out into his normal environment and see what crazy results vary.
We may see...
- Shinji asking that Evangelion sized Air Trecks be built for future Angel battles.
- Uzumaki Naruto creating a new form of taijutsu based on AT movements for aerial maneuverability.
- Ranma Saotome having a much easier time executing the Saotome Secret Technique and easily ditching behind unwanted attention.
... and so forth.
I admit that this isn't exactly the most interesting idea in the world but I do want to see some Air Gear fics take off.