Travelers who have started exploring Natlan in Genshin Impact will encounter a Tepetlisaur Whelp that will become their companion on the journey. From version 5.0, this Saurian has been featured in numerous World Quests and puzzles, making players attached to the Whelp called Little One (default name). But everything had to come to an end when the last quest for the Little One was released in version 5.5.
The final quest is titled Someday, We All Must Walk Alone, and it is unlocked after going through every quest and puzzle related to the Little One, making it hard for some players in the community to get it. This guide will help players to unlock this quest by listing all the available quests for the Little One and the solution to their puzzle.

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Find the new Local Legend “Infinitesimal” in Natlan and how to defeat it with this guide.
How To Unlock Someday, We All Must Walk Alone Quest in Genshin Impact
Travelers can only unlock the Someday, We All Must Walk Alone Quest by completing all quests related to the Little One in Genshin Impact. This includes quest chains that have the Little One as the main character, sub-quests, world quests, and even Archon Quests where the Little One has been shown or has its own dialogue. There are 56 quests and 3 different puzzles in the open world for you to complete to unlock the Someday, We All Must Walk Alone Quest.
Archon Quests Related to Little One
No. |
Name |
Version |
---|---|---|
1 |
Chapter V – Act I: Flowers Resplendent on the Sun-Scorched Sojourn |
5.0 |
2 |
Chapter V – Act V: Incandescent Ode of Resurrection
|
5.3 |
No. |
Name |
Version |
---|---|---|
1 |
A Saurian Lover’s Ordinary Days |
5.0 |
2 |
Feeling like Fish Today! |
5.0 |
3 |
Gifts and Gifts in Return |
5.0 |
4 |
Lies and Promises |
5.0 |
5 |
Lights, Kamera, Action! |
5.0 |
6 |
Special Friends |
5.0 |
7 |
Tepetlisaurus Hide-and-Seek |
5.0 |
8 |
Weighty Wings |
5.0 |
9 |
Waiting For Seeds to Sprout |
5.0 |
10 |
Treasures and Collectors |
5.0 |
11 |
Friends of Fire and Water |
5.2 |
12 |
Sauro-Vet’s Dilemma |
5.2 |
13 |
Stones, Coconuts, and Dragon Traffickers |
5.2 |
14 |
The Lone Isle Named Night |
5.2 |
15 |
Is “Intensity” Really the Key? |
5.5 |
Shadows of the Mountains Quest Chain
No. |
Name |
Version |
---|---|---|
1 |
Beneath the Crystal Rock |
5.0 |
2 |
Peace to the Slumbering |
5.0 |
Tale of Dreams Plucked From Fire Quest Chain
No. |
Name |
Version |
---|---|---|
1 |
Tracer No Tracing |
5.0 |
2 |
Seeker No Finding |
5.0 |
Between Pledge And Forgettance Quest Chain
No. |
Name |
Version |
---|---|---|
1 |
Lost in the Woods |
5.0 |
2 |
Rite of the Bold |
5.0 |
3 |
Revelations From the Past |
5.0 |
Lost Traveler in the Ashen Realm Quest Chain
No. |
Name |
Version |
---|---|---|
1 |
Vaulting the Wall of Morning Mist |
5.2 |
2 |
Adventure in the Land of Mists |
5.2 |
3 |
Palace of the Vision Serpent |
5.2 |
4 |
To the Sky-Road |
5.2 |
5 |
The Flowing Primal Flame |
5.2 |
6 |
The Other Side of the Sky |
5.2 |
7 |
Moment of Awakening |
5.2 |
8 |
The Chosen One’s Promise |
5.2 |
From One Case to Another Quest Chain
No. |
Name |
Version |
---|---|---|
1 |
Incidents Are Ever Sudden |
5.2 |
2 |
Beat the Clock: 24 Hours |
5.2 |
3 |
An Air Race and an Alibi |
5.2 |
4 |
Farewell, Final Saurus Cracker |
5.2 |
Path to the Flaming Peaks Quest Chain
No. |
Name |
Version |
---|---|---|
1 |
Nahuatzin’s Leap |
5.5 |
Chronicler of the Crumbling City Quest Chain
No. |
Name |
Version |
---|---|---|
1 |
The Frozen, Rekindling Land |
5.5 |
2 |
The Forsaken Sea of Wisdom |
5.5 |
3 |
The Sealed Site of Sacrifice |
5.5 |
4 |
In Search of a Hidden Heart |
5.5 |
5 |
Once, the Sacred Seat of Judgement |
5.5 |
6 |
Where Once There Was a Calculation Array |
5.5 |
7 |
Where Once Force Was Reversed |
5.5 |
8 |
Where Once There Were Arms Aplenty |
5.5 |
9 |
The End of the Road |
5.5 |
10 |
As the Burning Sun Sears Shadows |
5.5 |
A Finale Emberforged Quest Chain
No. |
Name |
Version |
---|---|---|
1 |
An Omen of Annihilation and the Final Entreaty |
5.5 |
World Quests Related to Little One
No. |
Name |
Version |
---|---|---|
1 |
To the Night, What is the Night’s |
5.0 |
2 |
The Road Ahead |
5.0 |
3 |
Come Fly With Me |
5.2 |
4 |
Open Your Heart to Me |
5.2 |
5 |
Stand by Me |
5.2 |
6 |
The Way Into the Mountain |
5.5 |
7 |
A Brief History of Rocks |
5.5 |
8 |
Investigator of Ancient Ruins |
5.5 |
9 |
The Attack of the… Purple Tepetlisaurus? |
5.5 |
All Puzzles Related to Little One
After completing all the related quests in Genshin Impact, there are three puzzles in the open world of Natlan. These puzzles are also related to Little One that you need to complete so the Someday, We All Must Walk Along Quest will be unlocked.
The first one is by completing Urubamba’s Warrior Challenge and ascending the podium to get the achievement ‘I Am Speed.’ You can find Urubamba on the edge of “Collective of Plent,” northeast from the Statue of the Seven. However, you must first complete his predicament to locate all eight Tatankasaur Whelps around his position. The Whelps are scattered in five different spots, and each of them has its own simple puzzle for you to complete. Once you have returned with all the Tatankasaur Whelps, talk to Urubamba once again to start the Warrior Challenge.
The second puzzle is located on the cliff northeast of “Flower-Feather Clan.” For this one, you need to transform into an Iktomisaur and use its skill on the glowing shape to remove the rock. Then, go to the plate and add a Saurus Crackers plate before you can investigate the Kamera and take a picture. This will reward you with a Precious Chest while also allowing you to get closer to unlocking the Someday, We All Must Walk Along Quest.
Remember that you need to offer the ‘Delicious’ variant of the Saurus Crackers and not the normal one.
The last puzzle is to power up the Secret Source Dragon Idol in the Sea of Shifting Sentience, Ancient Sacred Mountain. Go to the waypoint southeast of the Sea of Shifting Sentience and indwell a Tatankasaurus to smash the Pulverites inside a gate. Afterward, infuse the device with Phlogiston so the Secret Source Servant removes the barrier and spawns a treasure chest.
Follow the servant to the platform above by clicking on the ‘Start’ option when you’re above the box, and let the piece embed in the ground and activate the mechanism to summon the Secret Source Dragon Idol.
After completing all quests and puzzles related to the Little One, you will unlock the Someday, We All Must Walk Along Quest in Genshin Impact, which can be spotted in the Quest Menu.
How To Complete Someday, We All Must Walk Alone Quest in Genshin Impact
Once you obtain the quest, teleport to Tepeacac Rise waypoint and head west to the Rest Area Entrance beneath the waterfall. You will be transported to a hidden domain, where you first meet Little One, and also the place to say goodbye. Follow the quest navigation and take a picture with Little One and Paimon, and you will complete the quest while also unlocking the achievement ‘Then You Will Be Free to…’ in Genshin Impact, marking the end of Little One’s quest.

RPG
Action
Adventure
Gacha
Open-World
- Released
-
September 28, 2020
- ESRB
-
T for Teen – Fantasy Violence, Alcohol Reference
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