A Clockwork Ley-Line: Flowers Falling in the Morning Mist

I've always searched,
for the you on the other side of the horizon.
A Clockwork Ley-Line and the curtains on this finale shall rise.

After the destruction of the Realm of Night, the Night Students have all disappeared.

Our heroes and heroines deduced that the big fire that occurred 20 years ago may have been the cause, so they set on an adventure to further learn about the incident and finally be reunited with their comrades who were also Night Students.
However, the principal who had previously fled suddenly reappears with the intention to revive the Realm of Night.

Just what exactly happened 20 years ago?
What happened to Kral Lazurit, the Magie who manipulated time?
Where are the Night Students...?

And thus, all the mysteries that surround the Academy shall be brought to light.