Arknights OST: [Immutable] Feat. Kal’tsit

May 2 [Immutable] officially launched the website of Siren Records and NetEase Cloud Music; [Album introduction] The misty travel songs, swaying in the long river of time. The wind that went looking for the answer has no way of knowing where it came. “Immutable“, I saw that the land that was scrutinized indifferently remained the same.