
The Beginning After The End,
http://www.mangago.zone/read-manga/the_beginning_after_the_end/

Yes, I have read the LN. The author posts the chapters on their website, Tapas & patreon.
And there are updates. It's still ongoing after all. The most recent update was on 11th September, the author posted chapter 292 (which is Episode 776-779 on Tapas).
Link,
https://tbatenovel.com/2020/09/11/ch-292-ep-776-779/
Only the most recent chapters are free to read on the author's website. You'll have to pay if you're reading on Tapas or patreon.
When I was reading, older chapters weren't available for free anywhere. So, I used wayback machine. You can try to figure that out, or find other sources. Good luck. ~

LN stands for Light Novel.
Although there are many differences between Web Novels and Light Novels, the primary is that LNs are usually official published works and Web Novels are free to read on the internet.
I think TBATE is both. It started off as a Web Novel, but is now officially published into volumes as LN, available for purchase.
I'm delighted by how closely this follows the novel. Even the translations.
And actually this is way more easier to follow than the novel (I stopped reading the novel around Toonka arc — ch. 83 — because it was getting harder to read...). Hopefully it doesn't get too repetitive, and keeps being intresting.
After reading TBATE & Solo Leveling, this seems the next best thing. In terms of making you feel excited.
Cale-nim is Hilarious, seriously.
“The Key To Fashion Is...The Face" — Cale.
Stooop abusing meee (*•ㅂ•)” (。>﹏<。)
Cannot wait for Raon to start making Cale's life more interesting...4 year olds can be pretty mighty, especially if you're a dragon to boot (ᵔᴥᵔ)
P.S. : The art is so gorgeous, holy shit. Everyone is so goddamn pretty, even the villains lmao. (Somehow even Billios looks cute xD)