Neverness to Everness: How to Level All 999 Nights Units to 100 Fast

The 999 Nights mode in Neverness to Everness caps every character at Level 100, and the whole run hinges on getting all four units there before you face the Crimson Dragon. Leveling comes from kills, not story beats, so the fastest route is a tight loop of high-difficulty combat plus a clean loot filter that keeps you focused on gear that matters. Here is exactly how the cap works and how to reach it on Esper Zero, Mint, Iroi, and Shinku.

Quick answer: Unlock 999 Nights, clear the Challenge chapters to open Nightmare mode, set Auto Pickup to Legendary and Mythic only, then grind monster kills on the highest difficulty available until each unit shows Lvl. 100, Max.

Unlock requirements for 999 Nights

999 Nights arrived with the Version 1.2 update and sits after the events of the Scarlet Letter as a self-contained mode. Before you can farm anything, you need to reach the mode itself and then open the harder difficulty that makes leveling efficient.

Once you clear the unlock story, the mode stays permanently available even after the limited-time event ends. Only the four characters introduced alongside it can be used inside 999 Nights.

Open Nightmare mode by clearing Challenge chapters

Enemies scale with difficulty, and higher-level enemies give more experience per kill. That is why unlocking Nightmare is the first real leveling step. You reach it through the Exploration Guide menu, which splits progress into Story, Challenge, and Nightmare tabs.

Set Auto Pickup to Legendary and Mythic

Loot filtering is the difference between a smooth farm and constantly stopping to sort junk. The Auto Pickup slider lives at the bottom of the Inventory screen and controls which rarities you grab automatically.

Enable Rare and Epic while you are still building up gear during the story. Once your units are geared and you are farming for the cap, disable both so only Legendary and Mythic drops get picked up.

The leveling loop to Level 100

Characters gain levels by defeating enemies, so the loop is simple to describe and easy to sustain. Keep the party on the highest difficulty you have unlocked and keep the kills coming.

Gear sets that carry the endgame party

Each class equips into multiple slots with set bonuses and unique effects, which is why the Challenge task asks you to activate 8 Set Effects. At the cap, a fully built swordsman like Esper Zero (shown as Zeebbo) runs deep into the Whiteflame Ballad set for consistent damage output.

Mint’s twin-blade build leans into flame conversion, with the Sunsinge Twinblades turning Crimson Flame into White Lightflame and stacking Dragonflame through her Ultimate and charged Basic Attacks. The point is not one perfect setup, but hitting enough set pieces to trigger the 8 Set Effects while your damage stays high enough to farm quickly.

How to confirm every unit is capped

You know a unit is finished when the Character screen shows its level as Lvl. 100 with the Max tag next to it. Inside the Exploration Guide, the Crimson Castle line item Reach Character Lvl 100 also flips to checked once you clear the cap.

If leveling stalls, the usual cause is farming on a difficulty that is too low for your party’s current level, which shrinks the experience per kill. Move up to Challenge or Nightmare and target denser enemy groups to keep the gains meaningful. After every character reads Max and the Crimson Dragon in Dragon Keep is down, the run is complete, and each cleared difficulty opens more Side Quests and equipment on the next replay.