Angels Without Wings Vol.2
Volume 1 (It's not required to read volume 1 to understand this volume, as this has a drastic change in the plot. If you want to have more mystery, I'd recommend starting from this volume)
Three years after the tragedy, Rukito tries his hardest to have yet another ordinary life with Shizuka. He is enrolled at Ikarus High School; a school which is well known for having excellent students. Due to Rukito's uncaring attitude but excellent test scores, he gets placed in a low priority class 'Zero' which forces students to stay extra hours after school until sunset. What he didn't know, was that class zero was chosen to be one of the first classes that will learn magic. Rukito decides to actually try this time, he wouldn't want Shizuka to see him as a failure for some reason he doesn't know.
One day, a student named 'Jinn Dalton' joins class zero, ready to learn about magic. He somehow manages to be friends with Rukito, something that no-one except the class president has done. One day, as they were walking together out of school, it instantly started to storm, and something happened that changed their lives forever.