Act 0 to Act 1 Main Story Walkthrough Guide for Seven Deadly Sins Origin (7DOS). This guide includes main quest walkthroughs, how to complete, puzzle guides, objectives, and more.
Early Game Guide | Daily Missions | Missable Content | Book of Stars |
Gimmicks & Puzzles | Best Team Comps | How to Recover HP | Daily Missions |
Character Upgrades | Weapon Upgrades | Enchant Guide | Boss Guides |
Table of Contents
ACT 0 Walkthrough
| Step | Objective |
| 1 | Head towards the tree. Defeat the Green Wispy on the way there. |
| 2 | Complete the prompt to touch the tree's trunk |
| 3 | Control the dragon and avoid obstacles |
| 4 | Move forward and defeat the Wispy |
| 5 | Step on the mechanism with Tioreh to open the door |
| 6 | Complete the prompt to reach out to the mysterious object |
| 7 | Defeat the two Golems |
| 8 | Defeat the Guardian Golem |
| 9 | Follow Tioreh and solve the Locus Stone puzzle |
| 10 | Swim across and climb up to follow Tioreh |
How to Solve the Locus Stone Puzzle
- Activate the Book of Stars ability
- Lift up the Locus Stone
- Place the Locus Stone correctly on the door

Press the corresponding prompt in front of the Constellation Stone to activate the Book of Stars ability.

Aim at the Locus Stone and use the same button prompts to life it up.

Rotate and palce the Locus Stone in the correct manner to open the door.
ACT 1 Walkthrough Chapter 1 - 32
| Step | Objective |
| 1 | Follow the ? and head to the Lotus Marsh |
| 2 | After the cutscene, Tioreh will join your team and the Team Formation tutorial will start |
| 3 - 7 | Defeat 4 creatures in Lotus March, then collect Dandelion Roots and wood. Place down a Crafting Bench and craft a Simple HP Recovering Potion |
| 8 - 9 | Examine the Strange Statue |
| 11 | Complete a 10 pull. The weapon equip tutorial will star right after |
| 12 | Follow the quest marker and defeat the Locus Stone Golem |
| 13 - 14 | Follow the quest marker to a Fire Element Stone. Use a Fire Element weapon to activate it |
| 15 | Head over to activate the Warp Point |
| 16 - 20 | Follow Hawk and get honey from up a tree. Go to the Hunter's Hut |
| 21 - 24 | Talk to the hunter and head up the cliff. Break the ore to get a Flint, then glide down to give it to Isaf |
| 25 | Use your Flint to light the campfire. Cook with Honey and Milk to create Honey Milk. |
| 26 | Talk to the Hunter to start another cutscene. You will be able to ride Hawk from here |
| 27 | Go to the vicinity of the Capital of Liones |
| 28 - 29 | After the cutscene, the Mastery tutorial will start |
| 30 - 32 | Go to the Capital of Liones. Follow the quest marker to start your battle with Marmas, the Holy Knight |
Fire Element Stone Requires the Specific Element

In Act 1 Chapter 14, you will come across a Fire Element Stone. Continuously attack it with a fire element attack to activate it. Just hitting it once or twice will not work as it will not be enough to fill the gauge.
| Note | There are various other Element Stones found in the world. The key to opening them is to attack with the matching Element. Remember this since some Element Stones are required to progress through the main story. |
ACT 1 Walkthrough Chapter 33 - 48
| Step | Objective |
| 33 - 35 | Go to the main hall of Liones Castle, then to stairs of the south gate. |
| 36 - 38 | Talk to the guard up the tower. Use the Owl to go to the giant bird's nest |
| 39 | Defeat the giant bird. Howzer will join your party after |
| 40 | Use a Cube Key to gain rewards from the Elite Reward cubes |
| 41 - 43 | Warp back to the Bigmoss Habitat and defeat the Bigmos |
| 44 - 48 | Follow the quest marker to get the Werebear camp. Enter and defeat the Werebear Chieftain |
Howzer is very Useful in Act 2

The Fire Element is important in Act 1, while the Wind Element will be used in Act 2. Howzer is a Wind Element character so get used to his kit in preparation for Act 2.
| Note | There are also Wind Element puzzles in Act 1. When you come by them, switch to Howzer to solve them |
Howzer Guide - Rating & Skills
ACT 1 Walkthrough Chapter 49 - 71
| Step | Objective |
| 49 | Head to the western pier of Lake Pernes |
| 50 - 52 | Dive into the lake and open the door. Enter The Mysterious Lab |
| 53 - 54 | Examine the marked objects. Use the Book of Stars to complete the Locus Stone puzzle |
| 55 - 61 | Use the Books of Stars to open the door to the altar chamber. Defeat the monsters there, then use the Constellation Stone to repair the way out. Use the device to escape |
| 62 - 63 | Go to the fountain statue in Liones City and repair it with Book of Stars |
| 64 - 66 | Talk to Yulia to start the Engraving tutorial. You will receive the Prince's Training Outfit after |
| 67 - 71 | Go outside of the west gate, then to the harbor to talk to the merchant. Approach and restore the broken ship with the Book of Stars |
How to Complete Repair Puzzles
- Activate the Book of Stars ability
- Select the objects to repair
- Activate the Book of Stars ability

Activate the Constellation Stone: Repair by using the right button prompts. You can identify the Constellation Stone: Repair by its hourglass marking.

Use the prompt to start the Book of Stars ability. Select the objects you want to repair. Those that needs repair are orange, and will become purple when selected. The blue gauge at the bottom of the screen will also fill out.

Once everything is selected, activate the ability again and the object will be repaired!
Early Game Guide