I want to help Baka-Updates as much as I can, so I add releases or series, but I'm having a hard time finding the dates of INKR comics' series, can you help me?
Example page

If you want to add the earliest date for comic, I suggest to visit content provider listed on INKR.

The majority of comics on INKR already released on other platform/magazine or standalone book, sometimes as earlier as 10-20 years prior.

For example, the comic you linked is provided by Kuaikan Manhua, a Chinese manhua platform (https://www.kuaikanmanhua.com/). That's where you get the earliest date.

Firstly, thanks for help, but have to add their english release date so yeah.

If you're referring to chapter release dates, iirc, MU doesn't require them to be entirely accurate, so you can actually just put today's date, and they'll still be accepted.

Otherwise, from the looks of it, they release two chapters every week, so you can try back-dating it that way.

EDIT: If you do put today's release date for all the released chapters, though, make sure that it's in bulk release format, so c1-9, instead of submitting them as separate chapters.