さ迷える魂、少女の夢、あの透明感の中で is an arrange of 幽雅に咲かせ、墨染の桜 ～ Border of Life [Bloom Nobly, Cherry Blossoms of Sumizome ~ Border of Life] Yuyuko Saigyouji's theme from Touhou 7 - Perfect Cherry Blossom
Performed by: 天狗ノ舞
From the album: 忘我の境
Arrangements by: 玖
Vocals by: 赤樫はがね