Demon's Gate Teito Shinshin Taisen Tokyo Mokushiroku-hen Music Complete Works
デモンズゲート 帝都審神大戦 ～東京黙示録編～ 音楽大全



composed by Tsukasa Masuko (https://vgmdb.net/artist/982) (composer of early (Shin) Megami Tensei games)

VGMdb (http://vgmdb.net/album/70953)

seconded

Found it here (https://sonixgvn.net/demons-gate-teito-shinshin-taisen-tokyo-mokushiroku-hen-music-complete-works/).

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