Slow lvl speed help!

[Zopto]

Sooo i playing all day doing quests and i only got lvl 12 for now
any tips?
i doing some sub quests but they give soo litl exp
Some ppl will give up from the game if exp is this low
also what is max lvl now? 100?

[Ralzaifon]

Do the crossover event, it gives a lot of exp and nice rewards. That said, there's no secret to levelling with 5x lower exp than originally intended. You just need to grind 5x as hard.

[Zopto]

crossover event? what is that? xD