The user might not realize that the latest versions of Apple apps don't require serial numbers. They might be trying to use an old serial number and facing issues. Also, some users might have lost their serial numbers and need help to retrieve them.
Honestly just some trash writing and sub par art. The NTR aspect is trash too, it wasn't written well at all and is just gratuitous garbage. I'm not really into NTR but when it's done properly then it's atleast readable. The MC is lame and the "villain" is worse lol actually all the characters are poorly written and just not interesting in the least. There's only a minimal amount of chapters but I still wouldn't recommend wasting your time on this.
