HoYoverse Studio rolled out a trailer for Zenless Zone Zero at The Game Awards , showing off characters from upcoming versions that haven't been announced yet. One of the characters is a famous singer in the game world, and she actually performs a fragment of a song in the video. The second character is much more combative and is possibly her bodyguard.
Version 1.4, and with it Harumasa and Miyabi, will appear in the game on December 18. Before that, you can pre-register to receive all sorts of bonuses. And yes, freebies are also available for already registered and actively playing users.