to play illusionary notes The youngest of the poltergeist Prismriver Sisters. Although skilled with all instruments, she prefers keyboard and percussion. Neither her keyboard nor her 'illusionary notes' exist in the natural world, and has no major effect beyond making the other two sisters' performance more enjoyable. She is clever and manipulative, usually goading her older sisters into doing her fighting rather than engaging in battle herself. The player fights her first if the player is playing as Marisa. She is short. Species: Half-human half-phantom Age: Under 60 years Ability: Kenjutsu Residence: Hakugyokurō Stage 5 boss and Stage 6 midboss, and a playable character in Imperishable Night, Phantasmagoria of Flower View, Ten Desires, Wily Beast and Weakest Creature, Immaterial and Missing Power, Scarlet Weather Rhapsody, and Hisoutensoku. Youmu is a gardener attached to the Saigyouji family and the bodyguard of Yuyuko Saigyouji, and a practitioner of a two-sword school of fencing. One sword is the Roukanken, which possesses power to kill ten yuurei in one slash, carried by Youmu from her left shoulder to her right waist, and she carries the Hakurouken on her left waist, which slices through people's confusion. The longer sword is the Roukanken, and it has been conveyed that it was forged by yōkai. The shorter sword is the Hakurouken, which seems to be the heirloom of the Konpaku family. According to the Saigyouji family, Youmu is the second generation to take her position, the former generation being Youki Konpaku. Youki was Youmu's fencing shishō (instructor). Youmu is also Yuyuko's sword instructor, but she is fundamentally treated as a gardener. Youmu wears a dark green and white dress, which sometimes contains baldricks for her various swords, and she has short, white hair. She is "fairly short." The color of her eyes changes after Perfect Cherry Blossom and Imperishable Night. As she is a mixture of human and yuurei, she has a half-human half-yōkai existence, and the large yuurei (, hanyuurei, , hanrei) that always follows her is the yuurei half of her body. In Perfect Memento in Strict Sense, Youmu (the one taking the appearance as a girl) was treated as "half-human half-yuurei," and the yuurei was treated as "yuurei," and it was supposed that Youmu (the half-human half-yuurei) manipulates the yuurei consciously. Youmu has a lower body temperature compared to normal humans and a higher body temperature compared to normal yuurei. In the Imperishable Night