BGM "Undercooled"(2004) by Ryuichi Sakamoto https://www.youtube.com/watch?v=OyM92tjRJA0&ab_channel=%E6%99%BA%E7%B5%B5%E3%81%BD%E3%83%BC https://www.youtube.com/watch?v=-wtFcr99k0c&ab_channel=jack19998