Event Story - Hoshimeguri no Kansokusha

Hoshimeguri no Kansokusha ~Throne of the Stellar~ ( 星巡りの観測者 ), also known as Hoshimeguri, was a 2018 event story with 26 sections. It was originally released as a part of the Ichiban Kuji for the 2018 Animate Girls Festival (AGF2018) and as a part of the in-game event. The theme song is Re:vale's Hoshikuzu Magic. The story has yet to be voiced by the voice actors.

Summary
OLD TALE

In the beginning, the myriad stars crystallized into a form known as the "Star Jewel". The gem contained the power to grant any wish. People prayed to the Star Jewel for blessings, and obtained joy and fulfillment in their lives. People prayed to the Star Jewel for evil purposes, and brought about calamities. People grew covetous of the Star Jewel, breeding hate and resentment. The Star Jewel That had granted millions of blessings, had instead became the vessel for millions of curses. A singular existence, the "Guardian of the Star Jewel", prayed for the Star Jewel to be sealed away. The wish was granted, and the Guardian fell into an eternal sleep.

The Star Jewel could no longer hold its form and split into six fragments. A single massive planet became six. On the verge of slumber, the Guardian mustered the last of their strength, creating a being to oversee the world in their place. To journey across the heavenly bodies, watching. The "Observer of the Stars" bore witness to countless moments, countless stars, and countless lives.

(Source: )

Translations
Read the translation here on the wiki