Project Slayers is a Rbl game featuring the slayer path and demon path. In Rbl Project Slayers, players need to reach level 15 first, then they can get to the Final Selection and become a demon. And here's the way to hit level 15 in Rbl Project Slayers:
If players choose to go the Slayer path, they must use breathing styles. Slayers need to fill up the Breathing Meter to use abilities, and unlike Demons, they won't be burnt by sunlight. Players can upgrade their breathing meter by gourds in the Butterfly Mansion. When From level 1 to level 12, players can do Bandits for progression, Grandpa Wagon's and Sarah's quest to get experience points and money. When they reach level 13, they can go to Zapiwara cave and do the 3 demon quest.
If players choose to go Demon path, they must use Demon Art. Demon characters need stamina to level up and can't be exposed to sunlight unless wearing a straw hat or kamado. When starting playing Project Slayer, Demon needs to do a bandit quest to reach level 10, and go to the Zapiwaru cave to do the quest to hit 15 levels.