Koukishou Alshain

Subaru got up each morning and rode the same bus on the same route into town for school.
One morning his tranquil routine was shocked by the appearance of very unusual men in black.
A friend of his uncle intervened in the nick of time. Bewildered, Subaru learned that day
about the truth inside himself.

There was a sinister shadow drawing near, and time was up.

A modern day Sci Fi adventure game.

[From English DLSite]