Hello.I'm Japanese. It's 11:30PM in Japan now.
There are many players around this time of the day.

JP servers also has log in issue (Error 1017) since yesterday.
Its seems that all JP servers are full now and this situation is going on for 2-3 hours at least.

People are trying to spam left click over and over to get into the game.
The Players who can't log in got angry with SE.
Some of them are trying to get in NA/EU servers...

This is completely ridiculous.