7DS Origin | Act 5 - Mine Invaders Walkthrough | The Seven Deadly Sins: Origin

Act 5 - Mine Invaders Walkthrough

Last Updated: March 25, 2026 1:00 AM

Act 5 Main Story Walkthrough Guide for Seven Deadly Sins Origin (7DSO). 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

7DSO Story Walkthroughs
Act 0 - 1	Act 2	Act 3
Act 4	Act 5	Act 6
Act 7	Act 8	Act 9
Act 10	Act 11	Act 12

Main Story Walkthrough Guide

Table of Contents

Act 5 Walkthrough
Act 5 Bosses Guide

Act 5 Walkthrough

Step	Objective
1	Talk to Howzer
2	Purify the corruption
3	Interact with the signpost
4	Head towards Ferzen
5	Defeat the Wild Dragon then talk to the nearby people
6	Continue onwards and talk to Ronnie
7 - 9	Talk to the villagers
10	Take the leftmost hoverstone to head to the mines
11	Tail Dreyfus but do not stray too far from him. Avoid getting noticed by Dreyfus as well, or the quest will fail
12	Talk to the Ferzen Miner
13	Find Forger
14 - 15	Head to the town square then defeat Fraudrin
16	Talk to Forger
17	Head into the mines' tunnel
18	Purify the corruption blocking the way to access the lift to go deeper
19	Head deeper into the mines. (Optional) Defeat the enemies on the way
20	Approach the source of the voice
21 - 22	Check the minecart then fix it using the Book of Stars' Restoration ability then use it to reach the next area
23	Defeat the Walkers
24	Talk to the Gorra to disguise yourself
25	Follow the Gorras' instructions to head to the secret base
26	Head to the quest marker and fight the Walkers
27	Chase after Waralga
28	Defeat the Walker Warden and loot the key to enter the next area
29	Defeat enemies and enter the next area
30	Proceed until you reach a portal and enter it then continue following the quest marker
31	Defeat Waralga then purify the Abyss Flower
32	Talk to Tata Komi

Next Area is Directly Below (After Step 29)

▲ Video showing the previous area is directly below the next quest area.

After defeating the enemies and entering the door, there will be two moving lifts — one going downwards and the other going upwards. There is no need to use the upwards lift since the quest marker is directly below.

Act 5 Bosses Guide

The First Boss Has an Aerial Phase

After dealing enough damage, the first boss will begin flying and won't land. Using a ranged character can help hit the boss while it is in the air.

Second Boss Uses Wide AoE Attacks

The Walker boss uses consecutive AoE attacks with a wide range. Time your dodges or use a ranged character and barrier combo to easily maneuver around the AoE attacks.