It's all about getting as many rewards as possible in Zenless Zone Zero. After all, those upgrades and characters won't just appear in your Agents and Inventory menus unless you buy them.
Agent Combat Intel: Qingyi | Zenless Zone Zero
If you know how the HoyoVerse games work, you probably expect Zenless Zone Zero to have you grind for that premium currency to get the best characters from the most popular banners. Much like Genshin Impact and Honkai Star Rail, ZZZ gives out Daily Check-in rewards for logging in every day. However, finding these rewards can be a little tricky because of where they’re hidden. I’ll show you how to claim your Daily Check-in rewards in ZZZ.
You can find the Daily Check-In rewards in the Events tab of the Pause menu in Zenless Zone Zero. They're under the New City Visitor's Passport tab. Here's a step-by-step breakdown of how to get there:
Log in every day to claim your daily rewards in the New City Visitor's Passport event in Zenless Zone Zero. Here's more information about the event's duration and rewards: