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Patch Notes of May 29

Book of Yog Idle RPG · Community Announcements · May 29, 2026

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Dear Commander:

We plan to start update maintenance on 15:00, May 29 (UTC+8). The maintenance is expected to take 120 - 240 minutes.

*Please pay attention to the community and in-game rolling announcements for specific times.

After the maintenance, please update the client to the latest version before start the game.

During the maintenance, the players will be forcibly disconnected and unable to login. Please logout before the maintenance to avoid any data loss.

The following is the introduction of update contents:

Star Corona SP — "Illuminated SilverDragon" Arrives!

Reunited with a figure from her past, Vina's latent power awakens completely, transforming her into the Illuminated SilverDragon. In the future, other SP will also experience their own breakthrough moments as their stories unfold.

Reach Sanguine 2 with Legendary Dragon · Vina and consume an Astral Engraved Rule to activate her Star Corona SP form — Illuminated SilverDragon. She will gain an all-new skill set, exclusive Sanguine skill, exclusive weapon and relic, a standalone Archive entry, and brand-new voice lines.

How to obtain Astral Engraved Rule:

Head to the Fate Starwheel and spend Sanguine Stone to draw for it.

Star Corona Growth System Notes:

New System: "Fate Starwheel"

SP Blackguard Rerun — Legendary Dragon · Vina

Event Period: After the update ~ June 25, 2026

Starborne Era — New Content

Prologue: "First Arrival in the Otherworld"

Entering the mode for the first time triggers an exclusive story sequence (one-time only). Once completed, you may freely explore the overworld map.

Whispering Maze — Updates

New Replayable Maze: Refraction Maze

Auto-Dispatch System

Replay Maze Progress Rewards

Upon reaching a cumulative total of 50 clears in a single maze, commanders can claim that maze's progress reward: Star Pact Specialization ×10, used for upgrading talents in the Specialization Star Chart. (Progress and rewards are tracked independently per maze and can only be claimed once per maze.)

After the update, both manual clears and dispatch clears count toward cumulative progress

Other Additions and Optimizations

SP Blackguard Class Change System — "Class Change" Now Available!

SP Blackguards who meet the requirements can achieve a career breakthrough, gaining Class talent upgrades and an all-new Class Front, awakening even greater combat power.

Class Change Rules:

Class Certificate Acquisition:

Other Notes:

Bonus Reward Distribution!

Super Monthly Pass — Limited-Time Benefits

Duration: After the update ~ June 30, 2026

Purchase the Super Monthly Pass during the event to receive the following benefits:

Cornucopia — In Progress!

Invest a certain amount of Coupons and receive even more Coupons in return!

Duration: After the update ~ June 18, 2026, 10:00

Limited-time Optional Banner

Available Blackguards in this Banner:

Coltish Artillerist, Legendary Dragon, Foxy Archduchess, Coffin Morrigan, Thorny Bramble, Centaur Minerva, Schneemond Princess, Shadowy Mirage, Nirvana Ignis, Judgement Hammer, Lady Swan Lake, Shamneko in Night, Blooming Ink Deer, Marine Rime, Flabellum Seraph, Falling Samele, Tundra Thunder, Everlasting Sol, Flicker Pierce, Jadeform Immortal, Phantasmal Dream, Double Shot Pursuit, Wightbone Dragon, Twinkle Palette, Skyborne Machina, Golden Hatch, Blazing Shear, Celestial Luan, Silverblade Oath, Green Whisper, Crimson Warshadow

Duration: After the update ~ June 12, 2026

The selected SP Blackguard may be freely swapped for another available SP Blackguard before they are successfully summoned. Pity counter is retained when swapping.

Once the selected SP Blackguard has been summoned, they cannot be changed to another SP Blackguard.

Limited-Time Pass

Duration: June 1, 2026 ~ August 1, 2026

During the event, commanders earn Pass EXP by spending FP or AP to level up the Pass and claim rewards. Unlock the Premium Pass to receive:

Sasaya's outfit set: Silver Bloom with matching headpiece and hair accessory

Sanguine Optional Box

Massive amounts of Sanguine Stones

And more!

Time-Limited Pack Store Update

New arrivals: TL Otherrealm Supply I, TL Otherrealm Supply II, Summer Whetstone Pack, Summer Contract Pack

Duration: After the update ~ June 24 (4 phases total)

Optimizations & Adjustments

Lifetime Card

SP Monthly Card

Daily Sanguine Stone rewards increased from 20 to 30

Summon Crystal — Grade Points Reward Boost

Aside from the Standard Summon, the Grade Points reward per pull in all other

banners has been increased from 100 to 600

Superior Supply Line — Requirements Reduced

The Summit score requirement in the Superior Supply Line event has been reduced from 2,000 to 1,000

Team Order Adjustment

In multi-team game modes, tap the Adjustment Mode button above the team number to easily swap the order of your current team with another

Ling Long Joins Twilight Prelude Treasure

Ling Long has been added to the Light-Dark Blackguard Random Roster and Light-Dark Blackguard Select Roster rewards in the Twilight Prelude Treasure

Primeval Gates — New Difficulty Levels & Optimized Drops

The Void Chasm leaderboard will no longer display players' clearing lineups

The Rune system now features a Quick Equip function, allowing you to equip Sub Runes with one tap

New Seasons for Regular Modes

Everwinter Land

\[Everwinter Land] New season is about to start. Due to the blessing of Ice, Ice type heroes will enjoy additional combat ability improvements in the battle of \[Everwinter Land]

Participate in the Everwinter Land Rankings. Commanders who place at the top will receive the following rewards:

Time Capsule:Genesis S Avatar Box,Genesis Frame Box

Void Chasm & Season 10 Launch

Duration: 2026-06-01 ~ 2026-06-29

Top commanders on this season’s leaderboard will receive the following rewards:

Exclusive Avatar:Amber Cat's Whisper

Time Capsule:Genesis S Avatar Box,Genesis Avatar Box,Genesis Title Box

Academy Cup

Duration: 2026-06-01 ~ 2026-06-29

Participating in the Academy Cup competition, the top-ranked commanders will obtain the following rewards:

Exclusive Avatar Frame:Azure Tide · Silver Bough

Time Capsule:Genesis S Frame Box,Genesis Frame Box,Genesis Title Box

Otherrealm — Carnival Season

Season Duration: June 1, 2026 ~ July 29, 2026

Season entry threshold adjusted to Level 400

Monster HP and ATK weakened

During the Carnival Season, battles have a chance to drop Realm Relic

Events

Starluck Blessing - Vina's Weapons

“A trace left behind when a star falls across the sky — once believed to be a blessing from the gods.”

Duration: After update ~ 2026-06-25

Spend Starwish Stone to draw from the event pool for a chance to obtain Vina's weapon skin — Veiled Blossoms, along with Vina's \[Cream Pastoral] skin set and matching headwear, Whetstone, bound Gold, Archaic Prefix/Suffix Removal Stones and Addition Stones, Otherrealm Coin, and more. After drawing the grand prize, subsequent rounds of premium value packs will be unlocked for purchase.

Duration: After update ~2026-06-25

Complete event spending requirements to obtain the following skins and more rewards:

32,800 Points: Sanguine Optional Box

100,000 Points: Supreme Skin Chest Ⅱ (Choose one specific previous limited cumulative recharge skin)

200,000 Points: Lottery Skin Box (Choose one specific previous Lucky Draw skin)

300,000 Points: Vina's \[Frost Whisper] outfit set and matching headwear and backwear

Old Blade Sheathed

Event Period: June 1, 2026 ~ June 13, 2026

Rewards: Otherrealm Coin ×220K, Covenant Crystal ×1,050

New Edge Drawn

Event Period: June 16, 2026 ~ June 29, 2026

Rewards: Otherrealm Coin ×220K, Covenant Crystal ×1,050

Event Rule

Duration the Event, every【Sanguine Summon】will gain point, accumulate point to obtain massive pts reward. Event reward can be claimed up to 6 rounds

This event will have server/Cross server ranking, and will provide related ranking reward (The Heart of Summon leaderboard will be replaced)

Expected Event Duration

After update~2026.6.11 12:00

 

Event Rule

During the Event, consume FP will have chance to drop event coin「Sakura Emblem」. 「Sakura Emblem」can be used to exchange various reward on event shop.

Expected Event Duration

2026.6.15-2026.6.21

Blaze the Trail

Event Rule

During the event period, every 1 FP commander consume will gain 1 event point, accumulate point to certain amount will gain stage reward, there will be 7 stage, up to 6 rounds.

Single-server and Cross-server leaderboard will be set on this event, rewards will be distributed based on the total event points accumulated during the event.

Expected Event Duration

2026-6-15 08:00 - 2026-7-13 12:00

Event Rule

During the event period, every blackguard summon will give 1 point, accumulate points to obtain massive accumulative point reward.

Expected Event Duration

2026-6-22 08:00 – 2026-6-28 12:00

Event Rule

During the Event, Commander can obtain massive accumulative point reward after reaching certain Academy Cup point.

The Event will have separate Leaderboard, Blacktide Medal and Exclusive Avatar will be offered as ranking reward.

Expected Event Duration

2026-6-15 08:00 - 2026-6-21 12:00

Future Update Plans

BUG Fixes and Other Optimization

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