Honkai Star Rail is the next big hit from HoYoverse, following the success of Genshin Impact. During the Chinese live stream for Honkai Star Rail three codes were revealed. These codes will work until the 30th of April, 2023. You'll also need to have made an account with a character already to be able to redeeem these codes.
Other Codes that didnt fit the coupon code:
HSRVER10XEDLFE
STARRAILGIFT
Cool, mate.