Guide · Sin Utopia FBD 12
Sin Utopia FBD 12, a wall previewed, not cleared
Sin Utopia — Kobaryo's 210 BPM grinder — sits at the top of In Falsus's difficulty ladder with a FORBIDDEN 12 badge and no text guide anywhere. This page is built from Kyrosol's chart view video (3:05): a hands-off preview whose run dies CONNECT FAILED at 003'920'589, so every still doubles as a map of where a first attempt bleeds out. Twelve steps run from the song select to the failed result card, then cross to the Sightread channel's played ULT 10 to see the far side of the wall. Tier and note counts follow the Miraheze community wiki.
Sources
- [In Falsus] Sin Utopia - Kobaryo (FBD 12) Chart View — Kyrosol
- [In Falsus Sightread] Sin Utopia - Kobaryo | ULT 10 — TrappyTheDemon
Screenshots come from the two credited videos: Kyrosol's FBD 12 chart view and the Sightread channel's played ULT 10 run. The chart view has no narration, so every number on this page is read directly from the game's HUD, banners and result cards; the three ULT frames deep-link to the backup video's own timeline. Tier and unlock data are cross-checked against the Miraheze community wiki.
Before the dive: read the hub screens
- 1
Read the song select before you commit
The grid parks Sin Utopia (Kobaryo) between Greyscale City (litmus*, FBD 12) and Enigma (sanmal, FBD 13), with the red FBD tab lit and the difficulty row running 3 / 7 / 10 up to that red 12 — both neighbours still carrying DIVE FAILED bests on the uploader's card. A 210 BPM track at the top of the ladder is a grind, not a sight-read; treat the select screen as the warning label it is.

FBD tab lit · neighbours at 12 and 13 · 210 BPM.Watch the source clip - 2
The detail card spells it out: Difficulty FORBIDDEN 12
Open the card and the game does the labelling for you: a red 12 beside the word FORBIDDEN, the [insanity] jacket art, and below it the CONNECT encounter Path Without Ambition — the uploader's own attempt still showing 000'007'675 FAILED. That FAILED is the furniture here: Sin Utopia's FBD chart is where attempts go to end early, and this page's filmed preview is no exception.

FORBIDDEN 12 · Path Without Ambition · best so far: FAILED.Watch the source clip
Opening: the first BREAK wave
- 3
The first wave hits every lane at once
Scoring opens and the opening statement lands immediately: six red BREAK tags stretch across all six lanes — Shift, A, S, D, F, Space — while the counter is still under 000'100'000. In a chart preview the tags just wait; in your run each one is a heavy note with a heavy penalty. Sin Utopia skips the warm-up and drafts both hands from note one.

Six BREAK tags at once — the chart's opening handshake.Watch the source clip - 4
Beams cross where your hands should be
A minute in, a magenta beam and a cyan beam cross over the right lanes at 000'644'481, with three BREAK tags queued underneath. Crossing beams mean two hands covering interleaved lanes while the tags keep counting. The preview makes it look calm; in play, this is where arm tension starts billing you.

000'644'481 — magenta and cyan cross over three BREAK tags.Watch the source clip
Midchart: the wall stacks up
- 5
The violet twin slab owns the middle
The signature object arrives around 000'859'308: a violet twin slab pouring down the middle lanes like a V, three BREAK tags sheltering under its mouth. Wide slabs pay out when the note cluster's centre meets the judgment line — chase the edges and you collect NEAR, or worse, feed the gauge. Keep the centre discipline this preview keeps demonstrating.

000'859'308 — the violet V over three BREAK tags.Watch the source clip - 6
The densest BREAK row of the chart
Past the midpoint at 003'114'989 the preview shows its ugliest frame: a near-full row of BREAK tags waiting on the line, one after another. This is the section that decides FBD attempts — the tags arrive faster than tired hands can reset, and every miss is gauge you cannot refill. Learn the row's rhythm here, where watching costs nothing.

003'114'989 — the row that ends most runs.Watch the source clip
The ending nobody survives: banners and the card
- 7
The finale floods in — and nobody is there
Then the score simply stops: 003'920'589, frozen, while a cyan flood pours down the entire field. The preview's final stretch plays to an empty room — the run's ceiling arrived before the chart's climax did. For you that frozen number is the useful one: it is roughly what sits on the table before the finale even starts.

Frozen at 003'920'589 — the flood nobody reaches.Watch the source clip - 8
CONNECT FAILED: where the preview officially dies
The banner drops over the dead lanes: CONNECT FAILED. The encounter tied to the dive — Path Without Ambition — ends with it, and moments later the verdict DIVE FAILED follows on the same field. FBD tiers fail you early and completely: once the run is called, the finale might as well not exist. That is the wall this page documents.

CONNECT FAILED — the encounter ends with the run.Watch the source clip - 9
Read the failed card like a checklist
The DIVE RESULT card closes the preview: grade D, 003'920'589, EXACT 73, NEAR 0, BREAK 1,789, MAX LINK 4, ENCOUNTER RESULT 000'004'075 FAILED — under the same red 12 badge. Seventeen hundred BREAKs against seventy-three EXACTs is not a verdict, it is a to-do list: the chart is playable note by note, and every tag you clear in practice rewrites that D. The DIFFERENCE line reading +003'920'589 means this was the card's first entry — nobody has banked a real score here yet.

EXACT 73 · BREAK 1,789 · grade D — a checklist in disguise.Watch the source clip
The same song, played: ULT 10 to an A
- 10
Now the same song, played: ULT 10 midchart
Switch tapes. The Sightread channel's ULT 10 run is Sin Utopia with someone answering: at 016'218'156 a green EXACT burst lands midchart under a sliding purple slab, the link counter still climbing. Same 210 BPM, same lane layout — ten difficulty levels lighter, and already a workout.

ULT 10 gameplay — the chart starts answering back.Watch the source clip - 11
EXACT across every lane
Late in the ULT run the HUD reads 085'741'603 and EXACT judgments print across all six lanes at once, the encounter score bar ticking toward its stars. This is the lesson the FBD preview could not show: streams this dense stay alive when the wrist stays loose and the eyes read groups, not notes. Carry that hand into FBD 12's BREAK rows.

085'741'603 — EXACT across the board, stars rising.Watch the source clip - 12
The clear, for reference
The played run ends DIVE CLEARED: grade A at 093'015'475, EXACT 983 + 151, NEAR 53, BREAK 59, MAX LINK 123, ENCOUNTER RESULT 000'031'625 CONNECTED — with Ayame and Aria named on the card. Those judgment rows sum to exactly 1,246 notes, the count the song list already records for ULT. So the wall has a far side: 59 BREAKs on ULT, and an FBD 12 still waiting for its first real card.

Grade A · 093'015'475 · CONNECTED — the far side of the wall.Watch the source clip
FAQ
How hard is Sin Utopia FBD 12 in In Falsus?
It is the FORBIDDEN tier of Kobaryo's 210 BPM track — the difficulty row runs MIN 3, EVO 7, ULT 10 and then the red 12 (levels and note counts per the Miraheze song list; the on-screen badges agree). For scale: the ULT 10 beneath it already plays at 1,246 notes, and the filmed FBD preview never survived to be graded in real time. Expect a grind measured in days, not attempts.
Did the run in this guide clear Sin Utopia FBD 12?
No — and that is the point. Kyrosol's video is a hands-off chart view: the lanes are never played, the score caps at 003'920'589, and the preview dies under the CONNECT FAILED banner before the result card grades it D with 1,789 BREAK against 73 EXACT. A failed card still teaches — it shows the score ceiling, the heaviest section, and how far the finale sits from a first serious reach.
What do the red BREAK tags on the lanes mean?
They flag the chart's heaviest, best-paying notes — and its costliest misses. On the failed preview card BREAK is the row filled 1,789 deep; on the played ULT 10 clear it reads just 59. That gap is the whole FBD game plan: clear the tags, keep the gauge, and the score follows. The gameplay wiki breaks down the exact judgment penalties.
Is Sin Utopia ULT 10 clearable, and what does a clear look like?
Yes. The Sightread channel's run ends DIVE CLEARED: grade A at 093'015'475, 59 BREAK, encounter CONNECTED at 000'031'625, and judgment rows that sum to exactly the 1,246 notes the song list records for ULT. Treat that card as the entry ticket — FBD 12 sits one tier up with the same BPM and thicker rows.
How do you unlock Sin Utopia and its FBD chart?
Per the Miraheze community wiki, the song arrives with chapter 9/20 'Afternoon' as its #1 Ayame unlock — and the encounter screens here do carry her name plate. The ULT and FORBIDDEN tiers then sit behind the game's mastery gates, which the site's unlock guide walks through step by step.
Related pages
Written for infalsustips.com from our own demo testing and community research. Fact-checked against: In Falsus Wiki (Miraheze) (CC BY-SA 4.0) · In Falsus Wiki (Fandom) (CC BY-SA)
Data reflects demo v0.3.1 · being re-verified on 1.0 · Unofficial fan site — In Falsus © lowiro