Hello, dear glad to hear about it. Oh to log in on naver webtoon and series you need to have a naver acc first

Just follow these steps:

get the naver app from playstore/apple store

sign up by giving the info needed (you can enter your own cell phone no. for this) for this step i would recommend that you use the name that is on your passport/ID

and then log in using this acc to your webtoon and series acc !!

In order to verify your acc to be able to read r17/r17 manhwas/ novels you need to verify your Real name first on naver. For that you need to go to the setting:

At the homepage -> top left corner there would be three lines -> you will then click it and see your name written (e.g Minnie 님 ) click it and from there verify your real name through ID/passport!!

I tried but if you still have any problem, lemme know I'll open my dms for you ♡♡