The world of Honkai: Star Rail is communicated through interfaces.

Menus and trackers let you know

Built to keep resources going, level up characters, and build to the next warp

What are the things you can do to maintain the pass.

But it's not all about increasing the numbers.

Something, like Honkai's actual text messaging function:

Star Rail's cell phone, assembled by you

becomes an important part of knowing more about the crew.

You start off with a cell phone in your pocket in pretty much the latest Hoyverse game.

It is an effective means of giving you a home for maps, mission logs, and a lot of other information.