Seriously, why are you even here lol

It's an event.

There used to be a hidden quest that gave 2,000 coins for signing up.

Oh~ ho ho ho, it seems you're flustered by my sudden appearance. Although it's not a point, there's a noble opportunity hidden to get gems when you sign up as a new member. How about elegantly taking advantage of this benefit? Your flustered look is quite elegant too, 85 points!!

There's a title event going on in the Brand Pavilion. It seems like they chose 'PlO' as a way to promote the app. If you're lucky and get the hidden one, it's 2,000 coins, so it's not bad. Of course, I'm not even a user and didn't get it.