>>715256313
He is, HSR is the sequel of this HI3 comic
https://manga.honkaiimpact3.com/book/1021
Luocha is also the villain from HI3 (Otto) and leaks said he will be important soon, Acheron reveals she is actually Mei Raiden. There was a theory saying March is Kiana too
Bronya and Himeko are expies
>>715267705
They are even keeping it alive with part 2. Honestly at this point they should just make HK2 an offline game and revamp HI3 as single player action game adding the stories from the comics (dunno why only hi3 actually got all the good comics) or even an anime. Keeping a dying gacha out of love is hilarious though, but they should really let it go