My heavenly System (Necromancer and summoning class I got)

I am Ye Ming
I am a detective
I am 27 years old
I transmitted to a place called tianhu continent
they summon us to kill demon king
but they check the status window of mine
they find out I don't have any class
I just thrown out of the castle

I choose Necromancer
you have choose Necromancer
you can choose one more class
I choose summoner
in summoner which class do you want
if you exceeds your limit
you will get curse
.Gods
.Demons
.Monsters
. all of these
I choose all of these

You have choosen all of these
We have said that if you exceeds your limit
you will get curse
you get curse
Curse : Now your heavenly system is updated into
heavenly badluck system
what the fuck
can I change my summoning class
host you are unable to do it

taking a short break
of 1 month