{"id":32864,"date":"2026-04-27T10:23:02","date_gmt":"2026-04-27T10:23:02","guid":{"rendered":"https:\/\/gaitgames.com\/?p=32864"},"modified":"2026-04-27T10:23:02","modified_gmt":"2026-04-27T10:23:02","slug":"how-to-obtain-sailor-piece-crystal-keys-for-crystal-defense","status":"publish","type":"post","link":"https:\/\/gaitgames.com\/?p=32864","title":{"rendered":"How to Obtain Sailor Piece Crystal Keys for Crystal Defense"},"content":{"rendered":"

Despite their rarity, the obtainment method for Crystal Keys<\/strong> is pretty straightforward. The Crystal Defense game mode is the only way to get the new Anti Magic Asta Sword in Sailor Piece<\/a>, which I\u2019ve ranked in my Sailor Piece Sword Tier List<\/a>.<\/p>\n

Sailor Piece Crystal Keys<\/span><\/h2>\n

Crystal Keys grant you access to the Crystal Defense game mode.<\/p>\n

How to Get Crystal Keys<\/span><\/h3>\n

There is one main way of getting Crystal Keys in Sailor Piece, though you can also trade<\/strong> for them. Crystal Keys have a chance to drop<\/strong> from any enemy across Sea 2<\/strong>. As the rule normally goes, high-level enemies are much more likely to drop rare items, including a Crystal Key.<\/p>\n

To speed things up so the process doesn\u2019t feel as tedious, you can AFK whilst your character battles a group of NPCs. If your character is strong enough, try to find a group of high-level NPCs to increase your chances of at least one, or even multiple, Crystal Keys dropping.<\/p>\n

This does mean that players without access to Sea 2 cannot obtain Crystal Keys unless they trade with others. With how popular Crystal Keys are right now, you\u2019ll need something good to trade with.<\/p>\n

Best Way to Farm Crystal Keys<\/span><\/h4>\n

As with most farming methods in Sailor Piece, the Quake Fruit<\/strong> is a top recommendation. This fruit allows you to deal damage to multiple enemies at once. You can do this on any Sea 2 island, but even just sticking around the Starter Island works.<\/p>\n

Crystal Defense<\/span><\/h3>\n

The whole point of obtaining Crystal Keys is to access the Crystal Defense<\/strong> game mode. You need 1x Crystal Key<\/strong> to enter, and you can find the required Crystal Defense NPC<\/strong> at the back left<\/strong> of Punch Island<\/strong> on the Sea 2<\/strong> map. After exchanging one of your Crystal Keys, a portal appears, which takes you to Crystal Defense.<\/p>\n

Crystal Defense involves defeating waves of enemies while making sure the crystal isn\u2019t destroyed. Each enemy that spawns immediately heads towards the crystal to attack it, and it\u2019s your job to clear them out before they deal too much damage. There\u2019s a marker indicating how much HP the crystal currently has left, so keep a close eye on it.<\/p>\n

If the crystal is still intact, you can proceed to the next floor, and so on. Progressing through Crystal Defense rewards you with the exclusive currency, Crystal Coins<\/strong>.<\/p>\n

Crystal Coins<\/span><\/h4>\n

You can spend Crystal Coins in the Crystal Defense Shop<\/strong> to purchase a range of goodies, including the new Anti Magic Sword, Clover Outfit, and Destroyer Aura. Unsurprisingly, you need quite a lot of Crystal Coins for these items. The Defense Shop provides yet another way to get Trait Rerolls, Race Rerolls, Clan Rerolls, Crates, Chests of various rarities, and Tower Keys for the Infinite Tower game mode.<\/p>\n

There\u2019s also the Defense Upgrades NPC<\/strong>, standing to the left of the Crystal Defense NPC on Punch Island. By speaking to them, you can purchase various upgrades for your stats in Crystal Defense, including Damage, Crit Damage, Crit Chance, HP, and Luck.<\/p>\n

With Crystal Coins, you can purchase:<\/p>\n