>>1981340It's just a pun with the name of the school or something. There was a lot of discussion about it back then, but the only one I can remember is that the name of the eastern school is Akaganekou = AK ga neko
In any case, it's just because the author wanted to, and Galil showed up more in the anime than in the manga. Well, she didn't get to fight in Atami in the anime, but she had other scenes to compensate, like the bottle opener part, or the school fair