Koyama played Naiyou no nai Tegami on his radio show
it's only 1/2 of the song but it sounds awesome
This's the song that 1 of my current fave acts at the mo Hilcrhyme wrote & composed
it's very Hilcrhyme influence for sure . It sounds like a combination of the duo's singles Mou Bye Bye & Daijoubu
but awesome , I'm satisfied
<3