Click on the code for the direct link if you don’t feel like copy-pasting.
Make sure to log in with your HoYoverse account.
⚠️ The redemption codes above are valid until February 17 at 11:00 PM (UTC-5).
The code below is released after the 3.4 update maintenance.
Some may have redeemed it and some may not, so I include it here.