Marital Vows of Rainbow Skirts and Feather Robes

is the Noble Phantasm of Yang Guifei.
A passage from the chinese poem "" in which told of the immortal love of and Yang Guifei. As it was a song that symbolized the forbidden love of a ruler towards a beauty that could lead said ruler astray, the song was shunned by others and became lost in time.
Prior to marriage she became a Taoist nun of considerable position and learned from the Taoist , receiving the title Taoist Taizhen. After death, her soul was said to become an immortal of . It is said that she is still waiting in Mount Penglai to be reunited with the Emperor she dearly loves. The star of the abyss secretly chants a melody that does not reach the ears of the common folk.
Category:Noble Phantasms
Category:B rank Noble Phantasms
Category:Anti-Unit Noble Phantasms
Category:Anti-Country Noble Phantasms
Category:Noble Phantasms introduced in Fate/Grand Order