Previous thread: >>2594250

Honkai 3rd is a beat-em-up mobile game where almost every playable girl is a lesbian.

Some story info:
http://houkai3rd.arthobbylab.com/story/
Anything on the page past year 2000 of the timeline has massive spoilers.

More story info provided by anons:
https://archived.moe/u/thread/2580958/#2584964

Translated Manga: (in roughly chronological order)
Keys of God Hidden Tales Chapter 15: https://imgur.com/gallery/eFx3i
Purple Kite's Tales: http://houkai3rd.arthobbylab.com/purple-kites-tales/
Gun Girlz Schooldayz EX: http://mangakakalot.com/manga/guns_girl_schooldayz_ex
-- Sakura Samsara happens here
Violet sea story: https://dynasty-scans.com/series/honkai_impact_3_violet_sea_story
-- GGZ main story. Note it's an alternate Universe(?) but many of the story events are carried over.
Prologue: https://mangadex.org/manga/22297/honkai-impact-3
-- HI3 Main story is approximately here
Valkyries dining escapades: http://houkai3rd.arthobbylab.com/valkyries-dining-escapades/chapter-1/
The gratitude arc:
ch1 - http://www.global.honkaiimpact3.com/index.php/news/35
ch2 - http://www.global.honkaiimpact3.com/index.php/news/40
ch3 - http://www.global.honkaiimpact3.com/index.php/news/45
Moon Shadow: https://www.mangadex.org/chapter/304813/1

Gameplay info: https://www.youtube.com/user/RMsubmarine/videos
Note this channel has a rough guide on a Chinese emulator that is optimised for playing Honkai Impact. It also has character guides and "Focus forecast" videos which are both very useful when deciding to roll gacha or not.

Finally /u/ has an active Armada called LilyGarden on the new Global US server. We are currently Tier III with 23-26 active /u/sers, daily bosses, and a handy warehouse system.
Discord (optional): https://discord.gg/me5ssV7