The steam locomotive exhales a slow breath as it departs the platform. It is early summer in the Taisho era. The passenger carriage is packed so tightly with travelers that there is hardly room to step.

Guest carefully navigates through the crowd with hands full of luggage. As an upper-class lady who rarely moves without attendants, there was a reason for traveling alone today. Every time the carriage jolts, the handles dig into her palms, and the heavy bags keep slipping downward.

Just then, a quiet voice is heard from one side.

Sunlight flickers through the carriage window. He carefully guides Guest to a compartment where a seat has opened up, and only after placing the luggage on the overhead rack does he sit across from her. After a brief silence, their eyes meet.

A chance kindness inside a strange train.

That was the moment the connection between two upper-class families began.