Mikoshi Chiyo Genshin: May Dreams Be Sweet...
In the latest Version 5.4 story PV "Ode of Floating Dreams," Genshin Impact employs "nightmare" as its narrative core, forming a temporal echo with Raiden Shogun's character PV "Nightmare," released three years prior. Together, these works trace Ei's complete emotional journey from obsession to resolution: the former reveals the twisted desires and eternal fixation born from the Abyssal Calamity, while the latter captures her awakening moment as she cuts through a millennium-old nightmare with her blade.

1. Ei's PV "Nightmare": Eternal Scar and the Embodiment of "Erosion"
Raiden Shogun's PV "Nightmare" depicts Ei(Raiden Shogun)'s gradual descent into "Erosion" through oppressive color palette and wordless storytelling, triggered by the loss of three cherished companions:
1.1 The fall of Tengu Sasayuri etched a bloodstained footnote into "Musou"
In the decisive battle against Orobashi no Mikoto, Sasayuri's blood-soaked rice paper crystallized into the primal ink stain of "Musou". This Tengu general's sacrifice became Ei's spiritual totem in her pursuit of martial purity.
1.2 The aberration of Oni Chiyo planted the seed of obsession for "Eternity"
Chiyo, the Oni girl devoured by an Abyssal beast, earned the title "Torachiyo" (Tiger of Hanamizaka) by ripping open the monster's chest, though ultimately became corrupted by the Abyss into a mindless weapon. Her final strike against Ei—which severed her own arm and oni horn—carved the warped creed "Eternity Is Stasis" into the Shogun's psyche.

1.3 The passing of Kitsune Saiguu ignited the torment of "Munen"
Saiguu of the Hakutaku Fox Clan transformed into a protective barrier during the Abyssal Calamity. The "Hananosato" conceived by her residual memories underwent final purification in the Sacred Sakura Cleansing Ritual. The passing of her wise companion permanently sealed Ei's emotional pathways to confront reality.
2. Ei's PV "Ode of Floating Dreams"
Raiden Shogun's latest PV "Ode of Floating Dreams" reveals Ei's past May Your Dreams Be Sweet...with Chiyo. With aid from Yae Miko and others, the Shogun finally strikes down the nightmare that plagued both her and Chiyo, severing not only Chiyo's torment but also her own obsessions tied to "Eternity" born of "Musou".

3. Chiyo and Ei's Bond: From Comrades-in-Arms to Tragedy
Chiyo, the most trusted Oni general under Ei's command, was renowned for her elegant poise and striking beauty. During the battle against the "Dark Serpent Knights," she was swallowed whole by a tiger-bodied, serpent-tailed beast. Tearing open the creature's chest, she escaped—yet emerged corrupted by Abyssal energy that eroded her mind into madness, reducing her to a battle-driven husk. Despite Ei's desperate efforts to reverse the corruption, all attempts failed. Ultimately forced to sever Chiyo's arm and horns when she turned her blade against him, Ei watched her flee into obscurity after defeat, her fate remaining shrouded in mystery.

4. The Fate of Mikoshi Chiyo
After her defeat, Chiyo fled with her fate remaining unknown. Her clan bore the stigma of her **"betrayal"—eldest son Iwakura Doukei (founder of Iwakura swordsmanship) and adopted son Torao Nagamasa** (forger of the legendary blade "Katsuragikiri Nagamasa") devoted themselves to clearing the clan's dishonor, yet failed to fully overturn societal prejudice.
5. Ei: Severing the Nightmare
The loss of her cherished companions plunged Ei into obsession. She sealed memories of Chiyo and others within the roots of the Sacred Sakura, attempting to preserve an "Eternal Past" through the Ley Lines—refusing to accept their deaths. Viewing all change as a threat, she concluded only by freezing time could history's tragedies be avoided, crystallizing the conviction "Eternity Is Stasis".

In the latest PV storyline, Ei finally relinquishes her past obsessions and severs the nightmare. The climax shows Raiden Shogun abandoning the "Eternity" born of "Musou", striking down the nightmare that haunted both her and Chiyo with a single blade strike-cutting through not only Chiyo's torment but also her own lingering fixation. All returns to an idyllic beginning: Ei, Chiyo, Saiguu, and Sasayuri reunite beneath the Sacred Sakura in a vision of serenity. The finale reveals Chiyo awakening from the nightmare, murmuring "It was such a long dream..."—signifying the Abyss's corruption has faded, leaving only sweet dreams hereafter.