亡婦魄霊の姿は凋める花の様に色無うて (Boufu Hakurei no Sugata wa Shibomeru Hana no Youni Iro Noute)

Background
"Boufu Hakurei no Sugata o Shibomeru Hana no Youni Ironoute" is an original song by Machigerita-P featuring KAITO.