Honkai: Star Rail — Non-Zero-Sum Game is a oNA (web) anime.

About the production: the story comes from a video game, there is 1 episode of about 1 minutes and its current status is "finished".

On AniList, Honkai: Star Rail — Non-Zero-Sum Game has an average score of 67%, a good score, and appears on 617 users' lists.

"Your humble servant 'Aventurine,' at your service. Just a cog in the machine known as the IPC's Strategic Investment Department. Nevertheless, I can also play the role of "friend" — if needed." "Go ahead, use me as you wish, even stab me in the back when you see fit. But remember, I don't make deals that don't pay off... So, I hope you don't disappoint me." (Source: Honkai Star Rail Youtube Channel)

Official synopsis from AniList.