After escaping his homeland due to war, a young man moves to a quiet, rainy town in Japan. The streets are peaceful, the apartment is cheap — but nothing feels right.

The landlords warn him not to touch the old radio.

But they don’t say why.

One day, when the static crackles and the signal hums — something familiar calls out from a place unknown.

A sunny city that seems to hold many secrets.

The voices he might recognize.

As he struggles to adjust to this unfamiliar world, he finds himself drawn to the mystery — and to a cheerful girl who may know more than she says.

What is the truth behind the forbidden frequency? And what will it cost him to find out?