The devil square is the PSOL organization headquarters in novus planet and also the main hub of the game, with events, new monsters, pbs, lots of resources and PVP !
In the devil shop, you can get some of the best items in the game ! And also, there is a safe zone there in case you too scared to fight against other races ! Not cheap though, so go farm first.
Farm talics in the ancient holy crystals ! However, remember Tisorin will protect them ! He is an annoying miniboss with 90% block rate, but at least good rewards ! Remember, even if he is defeated, you are definetly NOT SAFE against other races !
Respawn = 6h
You will also find jewelery cubes and an overweight choty in the devil square ! You can get elementals from him, remember he will fiercely protect them ! ( even though he is quite weak ).
Respawn cubes = 1,2,3,4,5,6 hours (one each)
Respawn chooty = 30 minutes
You will also find two hardass pbs in this place, so be carefull and call your whole race to fight!