You're looking for a review of "Sentou Yousei Yukikaze" with Indonesian subtitles, also known as "War God or Guardian Angel" or simply "Yukikaze".
The soundtrack, composed by Taku Iwasaki, complements the anime's tone and atmosphere, with a mix of energetic and melancholic tracks. i sentou yousei yukikaze sub indo
The supporting characters are also well-fleshed out, particularly the enigmatic and intriguing characters of Fuu and Mikage. You're looking for a review of "Sentou Yousei