The strategy that an uncle wants. Is it this one? The Battle of the Two Emperors?

Main Storyline:
1. First Entering the Foreign Land
It's very simple; you can easily pass through by following Cai Lin and Xiao Yixian's guidance.
2. Four Directions Pavilion Conference
The cave entrance is blocked, jump off the cliff to get up. There are multiple routes related to side quests, which will be mentioned below. If interested, explore them one by one; if not, you can simply ignore them.
Follow Nalan through the maze formation; later it seems you can walk around freely.
Note that the treasure map you later get from Han Keng is located in the scene before confronting Thunder Lord, with a door blocking it.
3. Xiao Yixian's Calamity Poison Body Activation
This is very simple, position yourself correctly, stand beside Xiao Yixian, and combos will prevent her from running around. Very easy.
4. Danta Trials
No comment on 5. Gamma Empire, Xiao Family in Trouble
When fighting the BOSS, stand one position below Medusa, directly facing the BOSS, you can deal combos to trigger fire rings or use skills to strike the BOSS. The BOSS only has a chain attack skill that can harm you, but efficiency…
6. Wild Ancient City, Pure Lotus Demon Fire
This… this story… is really frustrating…
Alright, first arrive at the Ancient Domain, there's a nearly dead adventurer (adventurers generally don't live long) who says that opening the seals in the order of Human, Heaven, Earth will grant extra wealth.
Anyway, since we need to open them all, follow the order starting with Human.
Human: First, the Mechanical Maze
This maze can actually be passed quite easily; I'll explain the main points.
It doesn't matter which one you start with, but each of the three leftmost mechanisms' paths must be passable. Then push the mechanisms in the order 3-2-4, and the bottom mechanism will open, after which you open the main mechanism, and then all will be opened.Then, first take the upper path (in this game "Battle Through the Heavens 2 - War of the Twin Emperors," the most important thing is not to follow the usual routes. Look for paths that are remote without arrows pointing to them; check them out, and you'll gain something). At the end of the upper path, there is a spatial wormhole (note, it's not a mechanism; this mechanism seems to open a certain door in the Demon Fire Mountain Range. Next to it is a teleportation, and if you teleport there, you'll reach the Earth Seal). Inside is an illusion; keep walking and you'll reach the Maze of Paintings (see the side quest). Then teleport back to the Demon Fire Mountain Range. Don't rush; your seal hasn't been unlocked yet. Then continue into the Human Seal. Previously, you went up, now take the right path, walk on, defeat the guardian to unlock the seal, and then there will be a prompt saying the Human Seal has been unlocked.

Sky: First, the sand cave.
This isn't technically difficult, just has a bit of navigation; walk around a few times and you'll find the way. Be careful not to enter the wrong hole, or you'll have to start over.

Then continue following the path to unlock the seal.

Earth: There aren't any hidden things here, just directly defeat the guardian.

After unlocking all in order, the mechanism below the entire seal opens. Take the pill formula materials.

7. Fighting the Soul Hall
There's not much to say here. At the extinguished soul lamp, after defeating a monster of a soul lamp, turn the lamp on to find the road, then turn it off, repeat the cycle. Later, you'll see the souls, talk to get the pill formula, and then the Soul Hall will be destroyed by you.

8. Ancient Realm, Ancient Tomb
Nothing much, just open and close mechanisms. For the Atuo quest, see the side quest.

9. Dou Emperor Mansion
A very important point: before going in, make sure you are at least an Eight-Star Dou Saint. As for why... I won't say, experience it yourself in the game! Hehe (sinister).

Run, run, run, you'll need to open two more mechanisms, no pressure, and eventually you'll face the Soul Sky Emperor.

10. Twin Emperor Mountain
If you're lucky enough to defeat the Soul Sky Emperor without bugs and die fewer than three times in the process, I salute you. After defeating the Soul Sky Emperor, you'll get a lot of experience~

As for how much opportunity is needed to reach Dou Emperor, I don't know. For some special reasons, after I defeated the Soul Sky Emperor, I directly became a Dou Emperor (without buying Emperor Flame).

Then comes the Twin Emperor Mountain storyline, completely defeating the Soul Sky Emperor is no problem, long live Emperor Yan!Side Quests:

"Hankeng" Quest: On the way up to the Blood Pool of Tianshan, you will see a man selling maps named Hankeng. Buy a map for the mountain from him to complete the quest.

"Cheater Hankeng" Quest: After buying a mountain map from Hankeng at the Blood Pool of Tianshan, you later meet Nalan Yanran, who tells you the map is fake and that Hankeng is a cheat. Afterwards, you can go to the Blood Pool of Tianshan to confront Hankeng.

"Treasure Map" Quest: Find Hankeng in North Tian City and get a real treasure map from him. Return to the Blood Pool of Tianshan, open a stone door on the mountaintop, and obtain the treasure inside.

"Last Wish" Quest: In the Ten Thousand Herbs Mountain Range of Danta, open two mechanisms to gain access to the legendary herb fields.

"Danta's Treasure" Quest: In the Sky City of Danta, open four mechanisms to unlock the chained seal leading to the mysterious land.

"Scattering Wealth Child" Quest: The first time you enter Danta, find the Scattering Wealth Child among the crowd.

"Ziyan" Quest: In the Ten Thousand Herbs Mountain Range of Danta, give Ziyan the Immortal Fruit. After giving it several times, Ziyan will plant a Dragon Seal for you, which will greatly help you in future battles with the Three Thousand Flame Fire.

"Exterminate the Clan" Quest: After reaching a certain level, accept the quest from Ziyan on Ancient Dragon Island. Then go to the territory of Tianyao Huang and kill all of Tianyao Huang to complete the quest.

"Exterminate the Pavilion" Quest: After reaching a certain level, accept the quest from the city lord of North Tian City. Then go to the Wind and Thunder Pavilion and kill the pavilion master to complete the quest. (Hidden quest: After completing the Exterminate the Pavilion quest, return to the Wind and Thunder Pavilion master's scene, where a portal will appear. Enter it to discover the treasure at the rear of the Wind and Thunder Pavilion.)

"Journey's End" Quest: In the first scene of the Soul Hall, find the child and accept the quest. Follow the child obediently to the end to complete the quest. Do not fight monsters along the way, or the quest will fail.

"Dream Lover" Quest: In the first scene of the Ancient Realm Sky Curtain, find the woman and help her search for her dream lover. Walk through the door at the lower left corner of the scene to enter the hidden place, where Atto is, who is the woman's lover.

"Atto" Quest: Help Atto solve his troubles. This quest is a puzzle. Take a pen and paper and carefully record everything to complete the quest!\"Soul-Numb Task\": In the Ancient Realm Sky, there is a scene with a soul lamp. When the soul lamp is turned on, the scene is illuminated, but monsters disappear; conversely, monsters can be found when the lamp is off. On the left side of this scene hides Soul-Numb, but the prerequisite is to turn off the soul lamp to darken the scene so that monsters and Soul-Numb can appear. \"Treasure of the Gate Task\": In the Wild Ancient Domain, enter in the order of \"Human\", \"Heaven\", \"Earth\" to open the stone gate in the \"Demon Fire Mountains\" and obtain the treasure. \"Treasure of the Cave Task\": In the Wild Ancient Domain, enter the sand cave in the order of \"Ji\", \"Bing\", \"Wu\", \"Jia\", \"Ding\", \"Yi\" to be transported to the location of the treasure. \"Treasure of the Formation Task\": Open the labyrinth (mechanism + stone gate) in the Wild Ancient Domain to be able to open the stone gate in the \"Demon Fire Mountains\" and obtain the treasure. \"Treasure of the Painting Task\": In the Wild Ancient Domain, in the Painting Formation scene, enter the mysterious world through the murals with flames on both sides. After activating the mechanisms inside (there are a total of 4 mechanisms), you can open the stone gate in the \"Demon Fire Mountains\" and obtain the treasure.