
The Gatekeeper update lands two new 6-star arcanists at once — Huntsworn Lilya (Star) and Drake (Beast) — plus a new 6-star Psychube, Atop the Tempest. Two characters, one Psychube: who do you build first, and who gets to use it? Where do they sit on the Reverse: 1999 character tier list? Honestly, it all comes down to one line: settle your main DPS first, then decide who inherits the Psychube. This guide walks you through exactly how to build both of them this version — and who should end up with the Psychube.
Reverse: 1999 4.0 Huntsworn Lilya: Positioning the Star 6-Star
Let's start with the basics: Huntsworn Lilya is a new character in Reverse: 1999 4.0. Her official name is "Huntsworn Lilya"; she carries the Star afflatus and is one of the two new 6-stars added in 4.0. Star afflatus units this version are built around high-burst single-target damage — which is exactly Lilya's specialty.
How to Build Lilya: Check the Environment First, Then the Order
A Star unit's value depends heavily on whether the enemy has a matching weakness. When the weakness lines up, Lilya's payoff is maxed out; when it doesn't, her performance drops off noticeably. So before you invest, check the enemy afflatus in the current stages and events. Don't hear "new 6-star" and dump every resource into her — if the afflatus doesn't match, the build is wasted.
If the environment checks out, the build order is: Insight level → Psychube → Resonance. Insight governs base stats and the skill level cap, the Psychube fills in the multiplier, and Resonance fine-tunes the substats. Push Insight far enough to max out her skills first, then circle back to the Psychube, and only then polish Resonance. Get the order backwards and you'll burn materials for nothing — the build stalls and you lose on both ends.

Reverse: 1999 4.0 Drake: The Beast 6-Star
With Lilya covered, it's time for the other new 6-star: Drake, who carries the Beast afflatus. The same version also adds a new 4-star, Glyndŵr (Beast).
Should You Build Both 6-Stars?
The rule of thumb is simple: look at what your team is missing. Lilya covers single-target burst and Drake covers Beast afflatus, so there's no conflict on afflatus — but there is a real conflict on resources. In practice, one version's worth of build materials is usually only enough to push a single 6-star to Insight III. Try to build both at once, and you'll end up with two half-baked units.
For F2P and monthly-card players, the safest play is to build one of them to Insight III and wait on the other until materials start piling up. Don't get greedy — take it slow.

Reverse: 1999 4.0 Psychube: Who Gets Atop the Tempest
With the characters settled, the Psychube becomes the new bottleneck. The new 6-star Psychube in 4.0 is Atop the Tempest — the only new 6-star Psychube this version — so deciding who actually gets it is the real puzzle.
Matching the Psychube to the Character
A Psychube's bonus is usually tied to a specific mechanic — number of attack hits, skill type, or status triggers. Whether it matches matters far more than whether it's a "6-star." A mismatched 6-star Psychube can easily pay off less than a well-matched high-rarity 4-star one.
One caveat: the officials haven't published Atop the Tempest's exact numbers in the update notes yet. Once it goes live, go by the in-game Psychube description — don't jump to conclusions early.
With So Much New Content, What Should You Tackle First?
4.0's celebration content doesn't unlock all at once — it rolls out in batches: Friday the Sprite, Little Monster Backgammon, Mane's Bulletin, and Spotlight Flashback, plus the character stories To the Sky Once Young and Unsworn, and the anecdote A Naive Prophecy.
Staggered releases keep the resource pressure even, but they're easy to miss. Our own low-tech trick: jot every event's unlock date into a calendar, so you don't discover you've missed one only after it goes live.
Beyond events, 4.0 also launches three new systems side by side: Rift Paradise, Bygone Portraits, and Thames Silhouette — a gameplay mode, a records feature, and a silhouette-style function, respectively. All three are gated behind main story progress.
If you haven't reached the corresponding main story node, the system's entry point simply won't appear. So for week one, the old rule still holds: main story first, events second.

Reverse: 1999 4.0 Team Building: Roles in the Four-Arcanist Squad
With builds decided and the Psychube assigned, it's time to arrange the team. Battles in 1999 use a four-arcanist squad, and the standard structure is "two DPS + one buffer + one survival." Both new 6-stars in 4.0 lean toward damage, so pairing them on the same team squeezes out your buffer and survival slots.
The DPS-to-Buffer Ratio
A double-DPS team suits short, burst-style stages, while long fights need a steady buffer instead. How to tell? Look at the stage's turn limit: tight on turns, go double DPS; generous with turns, add a buffer.

Reverse: 1999 4.0 Celebration Rewards: 40 Pulls and the Guaranteed-New 6-Star
Let's end on the fun part: the rewards. 4.0's login bonuses include a guaranteed-new 6-star, a self-select 6-star Euphoria character, Sotheby's limited garment, the celebration edition of the Roar Jukebox, and a limited-time 40-pull sign-in.
Who Benefits from the Guaranteed-New 6-Star
The guaranteed-new pick is worth more on older accounts: the fuller your collection, the more likely the random new character fills a gap. New accounts have shallow collections, so you can easily draw a character who duplicates a role you already cover — which dilutes the value.
The 40-pull limited sign-in is a fixed, guaranteed payout — log in every day during the event window. Missing a single day hurts.
Should You Buy the Garments and Wilderness Themes?
Seven garments go on sale this version: Huntsworn Lilya's "Iridescent Crown," Everecho's "A Song for Souls," Cornerstone's "House of Life," Beryl's "Fate Unstrung," Voyager's "When the Universe Surges," Sotheby's "The Loudest Note," and Kiperina's "Shepherding the Evening Star." Alongside them come a new Wilderness theme, "Elegant Name," and a new Roar Jukebox, "Empty Seat at the Round Table."
Bottom line: garments and themes add zero combat power — they're pure cosmetics. F2P players can skip them entirely; saving resources for characters and Psychubes is the real priority.
How to Cope Before You Get the Psychube
Before the new 6-star Psychube goes live, bridge the gap with a high-rarity Psychube of the same afflatus and a matching mechanic. As long as the placeholder's main stat is right and it's leveled to the cap, the short-term gap won't be big enough to block you.
What you really need to watch: don't refine your placeholder Psychube too far — once those refinement materials go in, you can't get them back when you swap. So — who to build first, who gets the Psychube, and how to split your resources. Feeling like you've got it all figured out now?

Reverse: 1999 4.0 FAQ
Lilya or Drake: Who Should You Build First?
A: Build whichever one matches the weakness of the current stages first; materials usually only stretch far enough to push one 6-star to Insight III. You can also cross-check the Reverse: 1999 character tier list 2026.
Who Should Get Atop the Tempest?
A: Give it to the DPS whose kit actually matches its mechanic. The officials haven't published its exact numbers yet — once it's live, defer to the in-game Psychube description.
How Do You Claim the 40 Pulls?
A: The 4.0 limited sign-in adds up to 40 pulls in total; log in during the event window to collect them.
Is the Guaranteed-New 6-Star Worth It on a New Account?
A: It's worth less than on an old account — new accounts have fewer characters in their collection and are more likely to draw duplicates of roles they already have. That's by design.
What Version Is 4.0 Right Now?
A: The official site lists 4.0.0 with an update date of 2026.09.24; the App Store build is 4.0.1, updated on 2026-09-25.

Reverse: 1999 4.0 Action Checklist
- Check the enemy afflatus in the current stages first, then decide whether Lilya or Drake takes priority.
- Push your main DPS's Insight high enough to max out their skills before thinking about Psychubes.
- Wait until Atop the Tempest's effects are confirmed on release before deciding who inherits it.
- Log in daily for the 4.0 limited sign-in and bank all 40 pulls.
- Save the guaranteed-new 6-star for the account with the fullest collection.
Psychube and skill numbers for 4.0 follow the in-game release; this guide is compiled from the official site's version fields and the App Store 4.0 update notes. To cross-reference the celebration event schedule and character stories, check out the Reverse: 1999 hub on GameHub.