The Great Britannia Expedition Event Guide for The Seven Deadly Sins: Origin (7DSO). Learn how to capture pets for mission, gathering locations, rewards, event duration and more.
Event ScheduleTips for Capturing Pets
Aim for the Horse in a Small Enclosure


Attacking the horse will defeat it in a single strike, so there's no need to attack it to lower its HP. The horse in a small space at the edge of the pasture won't run away even if you get close so just keep using potions patiently until it's captured.
Mach - How to Get & StatsUse a High-purity Potion of Charm or better. Since you can't lower its HP, the 20% Capture Resistance will apply as is.
Lower the Marincat's HP


The Marincat is a monster that you can attack multiple times, so lower its HP until it's barely left before trying to capture it. It is recommended to defeat nearby monsters first to avoid being interrupted.
Domesticated Marincat - How to Get & StatsIf you lower its HP to critical levels, you can capture it with up to a 20% chance even with a Faint Potion of Charm.
Must Be Caught in Wind Cove Waters


Sand Crabs are monsters that can attack multiple times, so lower their HP to a sliver to make them easier to capture. They live in a wide range of coastal areas, but to clear the mission, you must capture one from the Windshore Coast.
Stubborn Sand Crab - How to Get & StatsIf you reduce its HP enough, you can capture it with up to a 49% chance even with a Faint Potion of Charm.
Initially Appears as a Red Crab

The Stubborn Sand Crab has the appearance of a red crab. It changes its appearance after being attacked once, so look for a red crab when you're trying to capture it.
Fire Spirits Are Found in Dalmally Town


The Kind Fire Spirit appears near the ruins of Dalmally Town. Attack it multiple times to lower its HP to a sliver, making it easier to capture. It is immune to Fire element damage, so adjust its HP by attacking with non-Fire element characters.
Kind Fire Spirit - How to Get & StatsIt has a 30% Capture Resistance, so it's recommended to use a High-purity Potion of Charm or better. If you use it after lowering its HP, you can capture it with up to a 27% chance.
Fire Spirit Appearance Differs

The capture target for this event mission is the Fire Spirit on the left in the image. Be sure to check its appearance before attempting to capture it.
Forest Golem Located at Windshear Hollow


Although Forest Golems exist in other areas, for this mission, you need to capture one in the Vanya area. It appears at the location in the image, northeast of the 'Windshear Hollow' warp point. Lower its HP and capture it.
Quiet Forest Golem - How to Get & StatsSince its Capture Resistance is high at 55%, we recommend using a Concentrated Potion of Charm or better. If you use it after lowering its HP, you can capture it with up to a 12% chance.
The Great Britannia Expedition - Gathering Locations
| Appearance | Location |
|---|---|
Mermaid's Tear | Along the coast east of the 'Bigmoss Habitat' warp point.![]() |
Unnamed Knight's Token | Tent east of the 'Liones Plains' warp point and near the building northwest of the 'Werebear Camp' warp point.![]() |
Evening Primrose | Near the building south of the 'Moonrise Hill' warp point and Forest southeast of the 'Crescent Moon Island' warp point.![]() |
| Appearance | Location |
|---|---|
Spirit Plant | Flower fields northwest and southwest of the 'Forest of Remembrance' warp point.![]() |
Spirit Firefly | Tree to the northwest and grassy area to the southwest of the 'Firefly Grave' warp point.![]() |
Lightdrop Flower Essence | Near the 'Light Garden' warp point and in the flower field to the southeast.![]() |
| Appearance | Location |
|---|---|
Dragon Plant | Multiple locations around Bone Grave Hill![]() |
Aquatree Essence | Breezeshade Vale, inside the lake to the southwest![]() |
| Appearance | Location |
|---|---|
Armor Cactus Essence | Near the southeast of the Valley Border, etc.![]() |
Mark of the Invader | Baste Dungeon, western cliff![]() |
| Appearance | Location |
|---|---|
Giantbloom Grass | Forest of White Dreams, Vanya Plains, etc.![]() |
Blood Essence Herb | Windshear Hollow, south side and northeast part![]() |
Gatherable Items Can Be Tracked
If you want to find a specific item, select the item from your Bag or Mastery Growth and use the tracking feature. The location and distance to gathering points will be displayed on the field and map.
The Great Britannia Expedition - Rewards
| Mission | Obtainable Rewards |
|---|---|
| I | - Star Fragments x100 - Cube Key x25 - High-purity Potion of Charm x2 - Platinum Ingot x3 - SSR Magic Crystal Shard x1 - Concentrated Potion of Charm x1 - Kingdom of Liones Seal x200 - Large Cube Key Bundle x1 - Special Mastery EXP x20 |
| II | - Star Fragments x100 - Cube Key x25 - High-purity Potion of Charm x2 - Platinum Ingot x3 - SSR Magic Crystal Shard x1 - Concentrated Potion of Charm x1 - Fairy King's Forest Seal x200 - Large Cube Key Bundle x1 - Hawk Emoji 03 x1 |
| III | - Star Fragments x100 - Cube Key x25 - High-purity Potion of Charm x2 - Platinum Ingot x3 - Concentrated Potion of Charm x2 - Ferzen Seal x200 - Large Cube Key Bundle x1 - Special Enhancement Stone x10 |
| Ⅳ | - Star Fragments x100 - Cube Key x25 - High-purity Potion of Charm x2 - Platinum Ingot x3 - Radiant Potion of Charm x2 - Oasis Village Seal x200 - Large Cube Key Bundle x1 - Special Enhancement Stone x10 |
| Ⅴ | - Star Fragments x100 - Cube Key x25 - High-purity Potion of Charm x2 - Platinum Ingot x3 - Brilliant Engraving Seal - Vanya Seal x200 - Large Cube Key Bundle x1 - Special Enhancement Stone x10 |
Claimed Rewards Arrive via Mail
Rewards claimed by clearing missions will be sent to your mailbox. Be aware that the event end date is the same as the reward claim period, and the mail has an expiration date.
The Great Britannia Expedition - Duration
Held Until April 22, 4:00 PM (UTC)
| Event Period | After maintenance on Apr 8 (UTC) - Apr 22, 22, 4:00 PM (UTC) |
|---|
The Exploration Mission 'Britannia Grand Exploration' will be held for about two weeks, until April 22, 4:00 PM (UTC). Since the capture missions may be time-consuming, it's best not to postpone them and progress them whenever you can.
Needs 5 Days of Logging In

Because login missions are included, you need to log in for at least 5 days to unlock the succeeding Missions and collect all the rewards. Gathering and pet captures done before unlocking the sheet will be reflected on the sheet after it's unlocked.
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