![Mysteries of Sacra [Isekai] [Weak to OP] [Beast Companion]](/_next/image?url=https%3A%2F%2Fwww.royalroadcdn.com%2Fpublic%2Fcovers-large%2F133253-mysteries-of-sacra.jpg%3Ftime%3D1761922858&w=640&q=75)
by Robert Wolf
Thrown into a world of beasts and magic, Kai must fight to survive and hold on to the last pieces of his humanity. One moment, Kai was an ordinary teenager on Earth. The next, he’s torn into Sacra, a savage realm ruled by spirit beasts, ancient mana, and fallen gods. Alone, untrained, and relentlessly hunted, Kai’s only goal is survival. But when he saves a dying beast and somehow kills a deadly predator, everything changes. He discovers a terrifying power: the ability to absorb the souls of his enemies and claim their skills as his own. Each soul strengthens him, but also warps him. Their memories claw at his mind, threatening to consume what’s left of the boy he once was. Can Kai master the powers within and become something new, something the world of Sacra has never seen? Or will he lose himself to the darkness and become the very monster he fears? What to expect: Follow Kai as he struggles to balance unimaginable power with the fragile threads of his humanity.In a world where kindness is weakness and morality is a luxury only the strong can afford, Kai must decide who he wants to be and what he's willing to sacrifice. His companions are more than allies; they're his anchor.Umbra, fierce and loyal, and Scry, wise and offlandish, refuse to let him lose himself to the darkness growing within. To escape Sacra and return to Earth, if that’s even possible, Kai will have to evolve into something new. Along the way, he’ll find allies, rivals, and maybe even a flicker of love…But every step forward brings him closer to a prophecy no one dares to speak. *** Chapters are uploaded every week, Mon -Wed - Fri Thank you all >>>Winner of the Royal Road Writathon challenge<<< Copyright © RobertWolf, 2025. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior permission of the copyright owner. Mysteries of Sacra is only posted on Royal Road and my Patreon. Any publication elsewhere is stolen and violates my copyright.
| # | Title | Words |
|---|---|---|
| 1 | Prologue - Morning Everything Changed | 0 |
| 2 | Chapter 1 - New World | 0 |
| 3 | Chapter 2 - Serpent Strikes | 0 |
| 4 | Chapter 3 - First Step | 0 |
| 5 | Chapter 4 - A Friendly Spirit Emerges | 0 |
| 6 |
| Chapter 5 - Umbra Shows Her Power |
| 0 |
| 7 | Chapter 6 - Umbra's First Bath - Exciting! | 0 |
| 8 | Chapter 7 - Hidden Treasure In The Swamp | 0 |
| 9 | Chapter 8 - The Rage Of The Redtip Brothers: Sudden Crisis! | 0 |
| 10 | Chapter 9 - Rebirth And Resolve | 0 |
| 11 | Chapter 10 - Journey Through The Bloody Swamp | 0 |
| 12 | Chapter 11 - The General’s Wrath | 0 |
| 13 | Chapter 12 - The Goddess Of The Grimoire And Her Trials: Part 1 | 0 |
| 14 | Chapter 13 - Well Deserved Rewards | 0 |
| 15 | Chapter 14 - Forgotten By The World | 0 |
| 16 | Chapter 15 - One Breakthrough After The Other | 0 |
| 17 | Chapter 16 - The Generals Assemble | 0 |
| 18 | Chapter 17 - Umbra vs Beetle: Full Power Unleashed | 0 |
| 19 | Chapter 18 - The Dragon Appears: Truth Is Not What It Seems | 0 |
| 20 | Chapter 12.5 - The Goddess Of The Grimoire And Her Trials: Part 2 | 0 |
| 21 | Chapter 19 - The Painful Truth | 0 |
| 22 | Chapter 20 - Only Lunatics Have No Fear Of Lightning | 0 |
| 23 | Chapter 21 - The Wolf’s Path of Slaughter | 0 |
| 24 | Chapter 22 - The Wolf Loses Control: Who Will Survive? | 0 |
| 25 | Chapter 23 - Was It A Useless Life In The End? | 0 |
| 26 | Chapter 24 - Life Amongst The Beasts | 0 |
| 27 | Chapter 25 - Legacy of the Dragon King | 0 |
| 28 | Chapter 26 - Beyond the Jungle | 0 |
| 29 | Chapter 27 - Big Wide World | 0 |
| 30 | Chapter 28 - Blood In The Forest | 0 |
| 31 | Chapter 29 - Last Of The Survivors | 0 |
| 32 | Chapter 30 - Sudden Allies | 0 |
| 33 | Chapter 31 - Storm Of Flesh And Fire | 0 |
| 34 | Chapter 32 - The Architect of Evolution | 0 |
| 35 | Chapter 33 - The Storm Breaks: One Final Move | 0 |
| 36 | Chapter 34 - The Shield of the Kingdom | 0 |
| 37 | Chapter 35 - Master: Where Did You Bring Me ?!! | 0 |
| 38 | Chapter 36 - The Weight of Power | 0 |
| 39 | Chapter 37 - Return Of The Hero | 0 |
| 40 | Chapter 38 – Settling In After The Storm | 0 |
| 41 | Chapter 39 - New Creation Awakens | 0 |
| 42 | Chapter 40 - The Trial Of The Blade | 0 |
| 43 | Chapter 41 – Umbra Grows Stronger | 0 |
| 44 | Chapter 42 - Well That Escalated Quickly: Part 1 | 0 |
| 45 | Chapter 42.5 – Well That Escalated Quickly: Part 2 - Let Him Go! | 0 |
| 46 | Chapter 43 - The Aftermath | 0 |
| 47 | Chapter 44 - Kran Makes His Move | 0 |
| 48 | Chapter 45 - He Can Even Cook? | 0 |
| 49 | Chapter 46 – Making Plans | 0 |
| 50 | Chapter 47 – Devouring The Chains | 0 |
| 51 | Chapter 48 – Madness Brings Forth New Life | 0 |
| 52 | Chapter 49 – Chief’s Worries | 0 |
| 53 | Chapter 50 – Drunk Liliya Sure Is Fun | 0 |
| 54 | Chapter 51 – The King’s Grief | 0 |
| 55 | Chapter 52 – Rhino Hunts | 0 |
| 56 | Chapter 53 – Enemies Appear: Nerva’s Madness | 0 |
| 57 | Chapter 54 – They Meet Again | 0 |
| 58 | Chapter 55 – Battles Escalate | 0 |
| 59 | Chapter 56 – Solar Judgment! | 0 |
| 60 | Chapter 57 – Nerva Breaks Down | 0 |
| 61 | Chapter 58 – Kran What Did You Do!? | 0 |
| 62 | Chapter 59 – Stuck Together | 0 |
| 63 | Chapter 60 - Reborn But Still Broken | 0 |
| 64 | Chapter 61 - Who Is She? What Is She? | 0 |
| 65 | Chapter 62 – The Truth Behind The Gods | 0 |
| 66 | Chapter 63 – Death Of A God!!! | 0 |
| 67 | Chapter 64– Back Together: You Killed Who?! | 0 |
| 68 | Chapter 65 – Transformation Begins | 0 |
| 69 | Chapter 66 – Divine Beast Umbra! | 0 |
| 70 | Chapter 67 – Deep Sleep | 0 |
| 71 | Chapter 68 – I’m Not the Same Anymore, Mother | 0 |
| 72 | Chapter 69 – Catching Up | 0 |
| 73 | Chapter 70 – Lisa Makes New Friends | 0 |
| 74 | Chapter 71 – The King Learns the Truth | 0 |
| 75 | Chapter 72 – Viridya’s Memories | 0 |
| 76 | Chapter 73 – The Fall of the Soultek Empire | 0 |
| 77 | Chapter 74 – Living As a Monster | 0 |
| 78 | Chapter 75 – He Is Awake! | 0 |
| 79 | Chapter 76 – Complicated Emotions | 0 |
| 80 | Chapter 77 – Tenebria Worries | 0 |
| 81 | Chapter 78 – The Council Assembles | 0 |
| 82 | Chapter 79 – Dragon Realm | 0 |
| 83 | Chapter 80 – War Begins! | 0 |
| 84 | Chapter 81 – Wasted Lives | 0 |
| 85 | Chapter 82 – Rage of a Dragon | 0 |
| 86 | Chapter 83 – The Voiceless League | 0 |
| 87 | Chapter 84 – Fighting Evil with Even Greater Evil | 0 |
| 88 | Chapter 85 – The Power of Money | 0 |
| 89 | Chapter 86 – Burning Power of the Grand Master | 0 |
| 90 | Chapter 87 – Love At First Sight? | 0 |
| 91 | Chapter 88 – The End of the Duchy of Rond | 0 |
| 92 | An Exciting Announcement - New Story Launching!!! | 0 |
| 93 | Chapter 89 – What Guides Kai Forward | 0 |
| 94 | Chapter 90 – Hospitality of Fallhaven’s Elite | 0 |
| 95 | Chapter 91 – Family Affairs | 0 |
| 96 | Chapter 92 – Nobody Can Hear Your Screams | 0 |
| 97 | Chapter 93 – A New Family Name | 0 |
| 98 | Chapter 94 – Troubles Brewing in Paleria | 0 |
| 99 | Chapter 95 – The Royal Funeral | 0 |
| 100 | Chapter 96 – Fun Morning in Fallhaven | 0 |
| 101 | Chapter 97 – Traitor Meets His End | 0 |
| 102 | Chapter 98 – Old Spirit Appears Once More | 0 |
| 103 | Chapter 99 – The Strider | 0 |
| 104 | Chapter 100– I’m Sorry, You Guys! | 0 |
| 105 | Chapter 101 – School of the Titan God | 0 |
| 106 | Chapter 102 – The Best Blacksmith in The Region Loses His Mind | 0 |
| 107 | Chapter 103 – If They Are Paying, I’ll Take It | 0 |
| 108 | Chapter 104 – Lisa Shows Off Her Talent | 0 |
| 109 | Chapter 105 – By the Gods, What Type of a Circle Is That?! | 0 |
| 110 | Chapter 106 – Arthraxius At Full Power | 0 |
| 111 | Chapter 107 – Custom Made | 0 |
| 112 | Chapter 108 – Archon’s Arrival | 0 |
| 113 | Chapter 109 – Archon Meets Kai | 0 |
| 114 | Chapter 110– Mystery Behind the Wolf Tattoo Spirit | 0 |
| 115 | Chapter 111 – Harbinger of Souls | 0 |
| 116 | Chapter 112 – Those Two Sure Can Eat | 0 |
| 117 | Chapter 113 – Entitled Magi | 0 |
| 118 | Chapter 114 – Sixth Towers Test: The Power of Water Part 1 | 0 |
| 119 | Chapter 115 – Sixth Towers Test: The Power of Water Part 2 | 0 |
| 120 | Chapter 116 – The Results | 0 |
| 121 | Chapter 117 – Spending Days Within the Tower | 0 |
| 122 | Chapter 118 – First Mission | 0 |
| 123 | Chapter 119 – Space and Time | 0 |
| 124 | Chapter 120 – An Island from the Forgotten Ages | 0 |
| 125 | Chapter 121 – Remnants | 0 |
| 126 | Chapter 122 – Umbra’s Progress | 0 |
| 127 | Chapter 123 – Twin God of Light | 0 |
| 128 | Chapter 124 – Fourth Head Emerges | 0 |
| 129 | Chapter 125 – Scry and Liliya’s Breakthroughs | 0 |
| 130 | Chapter 126 – The Envoy Returns | 0 |
| 131 | Chapter 127 – Secret Plans Discovered | 0 |
| 132 | Chapter 128 – Old Friends | 0 |
| 133 | Chapter 129 – Return | 0 |
| 134 | Chapter 130 – Letting It All Out | 0 |
| 135 | Chapter 131 – The Hundred-Year Tournament Begins! | 0 |
| 136 | Chapter 132 – First Round | 0 |
| 137 | Chapter 133 – Siku Makes a Friend | 0 |
| 138 | Chapter 134 – Unlikely Alliance | 0 |
| 139 | Chapter 135 – Grimnir’s Fighting Style | 0 |
| 140 | Chapter 136 – Watching the Tournament | 0 |
| 141 | Chapter 137 – Second Round | 0 |
| 142 | Chapter 138 – Taking a Stroll Through the Second Stage | 0 |
| 143 | Chapter 139 – Light and Blood | 0 |
| 144 | A Short Announcement: A New Story Dropping Today | 0 |
| 145 | Chapter 140 – Howling Winds | 0 |
| 146 | Chapter 141 – Third Round | 0 |
| 147 | Chapter 142 – Meeting Old Acquaintances | 0 |
| 148 | Chapter 143 – Broken Rules | 0 |
| 149 | Chapter 144 – An Apostle Appears | 0 |
| 150 | Chapter 145 – Kai Reveals His Spell | 0 |
| 151 | Chapter 146 – Unexpected Outcome | 0 |
| 152 | Chapter 147 – Battles Everywhere | 0 |
| 153 | Chapter 148 – Battles Everywhere: Part 2 | 0 |
| 154 | Chapter 149 – Semifinals | 0 |
| 155 | Chapter 150 – What the Hell Is Even Going on Anymore? | 0 |
| 156 | Chapter 151 – Nothing Going as Planned | 0 |
| 157 | Chapter 152 – On The Run | 0 |
| 158 | Chapter 153 – Neverending Desert | 0 |
| 159 | Chapter 154 – The Demonic Ways: Totem Activate! | 0 |
| 160 | Chapter 155 – Times Are Changing | 0 |
| 161 | Chapter 156 – The Expedition | 0 |
| 162 | Chapter 157 – Arguing About Loot: What Could Go Wrong? | 0 |
| 163 | Chapter 158 – Festival of the Four | 0 |
| 164 | Chapter 159 – Stumbling Upon the Greedy Crew | 0 |
| 165 | Chapter 160 – A City and A Temple? | 0 |
| 166 | Chapter 161 – Confused | 0 |
| 167 | Chapter 162 – Fake Grand Magus | 0 |
| 168 | Chapter 163 – Undying Flame, Undying Soul? | 0 |
| 169 | Chapter 164 – Trouble Follows You | 0 |
| 170 | Chapter 165 – Icy Lands and Sorrow That Remains | 0 |
| 171 | Chapter 166 – Death and Turtles | 0 |
| 172 | Chapter 167 – Big Steps | 0 |
| 173 | Chapter 168 – Speed | 0 |
| 174 | Chapter 169 – Grand Master or Something More? | 0 |
| 175 | Chapter 170 – Time to Beat Some Sense into a Warchief | 0 |
| 176 | Chapter 171 – Totemic Soulfire: Demons Fall | 0 |
| 177 | Chapter 172 – Old Faces, New Lives | 0 |
| 178 | Chapter 173 – Realm of Remains: Unlocked | — |
| 179 | Chapter 174 – Aspects of Fire | — |
| 180 | Chapter 175 – The Colosseum | — |
| 181 | Chapter 176 – Crazy Plans and Hidden Places | — |
| 182 | Chapter 177 – Home Sweet Home | — |
| 183 | Chapter 178 – Another Dragon | — |
| 184 | Chapter 179 – Archon Shows His Might! | — |
| 185 | Chapter 180 – Coldblooded Liliya | — |
| 186 | Chapter 181 – Dragons Everywhere | — |
| 187 | Chapter 182 – Birds' Nest | — |
| 188 | Chapter 183 – Catching Up | — |
| 189 | Chapter 184 – Fighting The Voiceless | — |
| 190 | Chapter 185 – Fighting The Voiceless: Part 2 | — |
| 191 | Chapter 186 – Behind The Scenes | — |