Just listened to that song and it's good!
I also have same taste in songs, I like calm, serene, melancholic songs that leaves long lasting impression.
Maiko Fujita's 80℅ songs are like that!
Here are some I recommend listening to;
Sotsugyou by Maiko Fujita (I love her voice in it, feels sad yet warming)
Unmei no Hito by maiko fujita
Oborozuki by Maiko Fujita (the violin enhanced her voice in it to a next level)
Ima demo anata ga by Maiko Fujita (this song is my current addiction)
Euterpe by EGOIST (that double bass and such a lovely erotic
Mienai Tsuki by Maiko Fujita
Koi ni Ochite by Maiko Fujita (gotta love the innocence in this song)
Mizufuusen by Maiko Fujita (it has that taeko drum sound and enhanced the song's potential)
Kono Shiroi Yuki to by Maiko Fujita (that piano and wood block sound, with her lovely voice)
Akane Sora ni Negau by Mao (this song made me cry)
Kimi no Kioku by Mao
1℅ by Maiko Fujita
Sakurairo Mau koro by Mika Nakashima (the warm piano tune enhanced the effect of song).
Karinui by Takanashi Yasuhara
Kimi ga kureta mono by Shizuka Kudo
I can recommend more if you like above those!
As the Light begins to intensify, so does my misery,
and I wonder how it is possible to hurt so much when nothing is wrong.