1-3: sumika from muv-luv 4-6: mikoto from muv-luv 7-9: akane fromm muv-luv 10-13 Meiya Mitsurugi from Muv Luv 14-16 Chizuru Sakaki from Muv-Luv? (but her school outfit is usually blue, not red...) 17-21 Ai Kagano from Mahou Shojiu Ai - could be kei from muv-luv? 22-24: yuuhi from muv-luv 25-26: marimo from muv-luv