※ The screenshots within the guide have been taken during testing and may differ from the actual uploaded content.

- Arena is separated into [Hero Arena], where you can battle other captains, and [Grand Arena], where you compete for ranks in real time.
- You can enter through the [Battlefield] > [Arena] menu from the lobby.
※ Arena is unlocked after clearing Adventure 4-5.

16-1) Hero Arena

■ Basic Details
- [Wanted]: Eight random opponents appear, and you can select the opponent you want to battle.
- [Record]: Only 10 battles starting from the latest battle is recorded in descending order, and old records are erased.
- [Rankings]: You can check your ranking and the list of top-ranked captains.
- [Rewards]: You can check the achievement conditions per tier, daily rewards, and tier rewards.
- [Round]: You can refresh the rounds after winning every battle against the Wanted opponent from the list, and you can manually refresh 30 minutes after the round starts or by using Gems.
- [Season]: A season lasts for two weeks. At the end of the season, rewards are settled based on the tiers, and the next season starts.
- [Bounty]: These are the points you gain or lose based on the result of the battle. Your tier goes up when you reach a certain point.
- [Arena Points]: A type of commodity that can be acquired through activities in the Arena. It can be used in the Exchange Shop.

■ Tier
- Tiers are separated from Bronze to Master, and sub-tiers exist for each tier. (e.g., Bronze III–I)
- If you rise to the top tiers, you can acquire a tier reward once per season.

■ Battle
- Battle duration is restricted to 1 min and 30 secs.
- If you win within the given time, you acquire Bounty and Arena Points.
- You will lose the battle if it ends under abnormal conditions such as time running out, network error, game crashing, and more.
- When defeated in battle, you can switch to a new opponent by spending Gems.

■ Other Details
- There are locked opponents in the Wanted list, activated after beating three captains in the line.
- When you win against the last captain, you can obtain [SSR★ Hero Shards] and Arena Points.
- Bonuses are added to the bounty based on the number of wins if you win multiple times in a row.
- You can claim a [Round Victory Reward] based on the number of victories in battle, and it is automatically distributed if it is unclaimed when the round is refreshed.
- Your [Hero Arena Tickets] are reset back to eight at 00:00 UTC every day, and it doesn't reset if you have more than eight.
- Daily rewards according to the tier are sent to the mailbox.
- When the season ends, you will be given the same tier and sub-tier that you reached that season at the following season.
For example, achieving Gold I at the end of the season will place you at the lowest Gold I tier at the start of the next season
- There is a difference in acquired/deducted bounty according to the win and loss record based on the difference in bounty with the opponent.
- You can skip the battle with the [View results through quick battle] feature.
※ You can use Auto Battle in the Hero Arena when your Pirate Membership is above <Pro>.

16-2) Grand Arena

■ Basic Details
- Upon initial entry, you are assigned to a group through [Start the Competition].
- 100 captains are assigned to one group based on the order of entry and compete in real time for two days.
- You need a [Grand Arena Ticket] to compete with an opponent. One ticket is recharged every two hours.
※ Grand Arena Tickets will not recharge if you hold the maximum amount.
- Ranking rewards are given by tier based on your final ranking at the end of the competition.
- You must compose a total of three teams, so come up with your own strategy according to the opponent's heroes and formation.
※ [Grand Arena] is unlocked after clearing Adventure 11-10.

■ Battle
- The battles are best 2-out-of-3, and each battle is restricted to 1 minute and 30 seconds.
- When you win against a high-ranked opponent, your rankings are switched.
- Your ranking doesn't change if you win or lose against a low-ranked opponent.
- You will lose the battle if it ends under abnormal conditions such as time running out, network error, game crashing, and more.

■ Other Details
- A Grand Arena Ticket is consumed at the start of the battle and isn't returned under any circumstances.
- Ranking rewards are distributed when you enter the Grand Arena again after the season ends.