Yo can someone TL the summary for this, it'd be pretty neato if someone did that
The teacher she admired most suddenly vanished from the academy.
All that remained were a mysterious trunk and a single letter—entrusted to her for reasons unknown.
"I will find Sensei."
With that resolve burning in her heart, Max grips the trunk and boards the Solaris, a train that traverses worlds. It is her first journey, bound for a destination lying beyond the boundary: "Tokyo."
But it is there that she meets Renankafu, a Railway Security Officer.
Their chance encounter pulls her into a conflict that will shake the very foundations of the world...