How to Level Up

You do not need to purchase or play the one-armed bandit to level up.
There are plenty of free ways to level — follow this guide:

Level 1 → 45

Begin in Twin City and complete the Beginner Quest Line.
This will bring you up to Level 45.

Level 45 → 52

Do the Phoenix Quest next.
You will reach Level 52 and receive Bound Equipment.

Level 52 → 80

Return to the Job Center and continue your class quests.
These quests will take you to around Level 80.

Level 80 → 90

Now you can do your Daily Quest, which gives a huge amount of EXP.
Your Beginner Pack also provides several EXP Balls.

Free Rewards to Claim

Don’t forget to collect:

 - Hero System rewards

 - Offline Event rewards

 - Daily Sign-in

 - Activeness rewards

 - These help you reach around Level 105.

Level 105 → 110

Go to Ape City and complete the Region Quests.
You will reach Level 110.
​
Level 110 → 120 

Now focus on:

Mining to collect Blood Badges → unlock 20 EXP Balls daily

Demon Exterminator Quests → more EXP Balls

By the end of the day, you can reach Level 120.

🎯 Bonus EXP Sources
Finishing special quests like:

Dis City
Evil Labyrinth
Battlefield

will give you huge amounts of EXP too.