Alchemy of Souls (2022)

In both of the story the ml is weak at first and will become strongest among the mages/counters
Great teamwork and friendship+ you will get Yoo Jun-sang (park Jin) here too ?(kind of same father figure and one of the strong character, he's friend of ml's father too )
Both ml grew up without parents
Both storyline follow hunting evil soul or soul shifters and the soul shifters/evil souls feeds on human soul
TUC doesn't have much romance and more action based show and set up in modern times
Though it can't beat AOS in storyline, production and fantacy, TUC is still entertaining in its own way
Yoo In-Soo is in the 2ns season and a silly counter friend of ml
If you enjoyed AOS hope you will enjoy TUC too

both rely on energy and sensing energy
both have a core of energy
both have a master/teacher and pupil
both about wicked spirits and destroying them

This drama is a love story between Kataoka Sakuya, a grim reaper who comes to the human world for the first time, and Mochizuki Nayuki, a woman who lost her father at a young age and has devoted her life to raising her only remaining family—her younger brother. As they meet, they gradually come to understand each other, and slowly, they begin to fall in love. However, a fate that will dramatically change their lives awaits them both…

Set in a fictional country called Daeho that does not exist in history or on maps, it is about the love and growth of young mages as they overcome their twisted fates due to a forbidden magic spell known as the "alchemy of souls", which allows souls to switch bodies. It follows the story of an elite assassin named Naksu, whose soul is accidentally trapped inside the weak body of Mu Deok—Jang Uk's servant from a powerful and noble mage family in the country. The young master of the Jang Family, Jang Uk, holds a dark secret about his scandalous birth. He wants the formidable assassin to help change his destiny.

Set in a fictional country called Daeho that does not exist in history or on maps, it is about the love and growth of young mages as they overcome their twisted fates due to a forbidden magic spell known as the "alchemy of souls", which allows souls to switch bodies. It follows the story of an elite assassin named Naksu, whose soul is accidentally trapped inside the weak body of Mu Deok—Jang Uk's servant from a powerful and noble mage family in the country. The young master of the Jang Family, Jang Uk, holds a dark secret about his scandalous birth. He wants the formidable assassin to help change his destiny.

Both are Korean fantasy/historical dramas in which the main characters have magical powers and a similar style of hair/dress. Both have strong wuxia influences.

FL shifts her soul into a different body
Strong and smart Female Lead and Male Lead
Hidden Identity - both FL and ML
Fighting scenes/Martial arts/magical powers

"The Only Girl You Haven't Seen" is a mini drama with 2 seasons, easy watch - there are s1 and s2 full ver. on youtube with English subtitles. (Chinese drama)
"Alchemy of Souls" is a normal lenght drama with 2 seasons - on Netflix. (Korean drama)

Shi Yeon is a Nine-Tailed Fox living undercover in the human world. By day, Shi Yeon is an employee at a natural history museum. By night, she's a top-ranking woman warrior in the Nine-Tailed Fox clan, charged with preserving the delicate balance between man and fox. But her world is sent spinning when an atrocious serial murder - where the victims have had their internal organs gouged out - is uncovered. Detective Min Woo believes the murders may relate to the organ trafficking trade, and goes undercover in a seedy organ smuggling ring. But Min Woo's cover is blown, and it's only through the intervention Nine-Tailed Fox warriors, Mu Young and Shi Yeon that he's able to survive! But he's seen their true identities as Nine-Tailed Foxes, can he be allowed to live?

The male leads didn't know martial arts, but later learned through old men imparting their powers into them ,thus allowing them to adapt quickly . They also have women to protect, those women go with them Everywhere.

THIS SERIES IS WHAT I AM WATCHING NOWADAYS
THE ML WAS LOCKED FOR A MILLENNIA because of the secret he holds
The fl started out as a very cheerful person but after many experiences she became ruthless nd very different from the way she was before
The fl freed the ml from the fate he was gonna suffer after getting unsealed without knowing anything she just wanted to save a person who hasn't done anything
Later on she wanted to achieve the peak of martial world nd when she was trying to obtain one of the strongest divine weapon in martial world due to some situations the weapon chose the ml instead nd she felt betrayed by it. Nd swore to take revenge but in the aftermath she disappeared nd everyone thought she died nd many years later she came back but this time she was attached to some young heiress girl of one of the immortal sects by some miracle nd that's the spoiler part so I won't tell it here she became a spirit that obtained some spiritual connection with that girl nd she obtained a way to come back into the martial world from the dead she had the same face as the girl she encountered only the girl from who she took the same face can see fls real face other people will see her as tht heiress girl so we had two versions of the same girl afterwards the fl nd the heiress girl joined the same sect she established when she was at its peak to kill the current leader who's the ml they had a lot of encounters but after this she started falling for the ml nd the events that happened while obtaining one of the strongest divine weapon she got to know what actually happened back then so they slowly faced a lot of things together nd got together but the ml that holded the secret of why he was sealed it started coming back slowly throughout the series nd they faced to fight against that curse together this is very similar to AOS in many ways as it also had something to do with souls nd such things that happened with fl here she also regained her original body later on nd such the budget is somewhere not that high but the char of fl nd ml is the thing to watch nd some side chars also are many people's fav it's worth watching if you avoid some plot holes. it's very similar in some ways with AOS

Alchemy of Souls is inspired by Chinese Wuxia dramas, and Love and Destiny is one of the finest ones. Ling Xi becoming Lin Mo will recall how Alchemy of Souls FL's soul transfers body and loses her memories. The superb acting and cinematography of Love and Destiny will not disappoint and surely will be enjoyed by anyone who enjoyed Alchemy of Souls.

Lee Heon is the king of Joseon. 7 years ago, when he was a crown prince, his beloved wife died. To this day, he has not been able to get over her death. For the past 7 years, the royal family and government members have tried to get King Lee Heon remarried without success. The nation has also implemented a geumhonryung edict, which is a ban on all single women marrying during this time when the king has not married. People are furious over the marriage ban. One day, King Lee Heon hears of a woman named Ye So Rang, who claims the spirit of the king's late wife exists within the royal palace. Meanwhile, Ye So Rang is a swindler and claims to interpret marital harmony signs. She is arrested and jailed where Officer Lee Shin Won works. To get out of her predicament, she pretends to be possessed by a spirit in front of Lee Shin Won. During her ruse, she mentions that the spirit of King Lee Heon's late wife exists within the royal palace. She is then brought in front of the king and he asks her if she can really see his late wife's spirit. To survive, Ye So Rang acts like her body is possessed by the king's late wife. Ye So Rang's lies get bigger and more audacious.

its also a ruthless ml and sweet girl and enemies to lovers types .revenge story or very awesome . they are like real enemies like stabbing each other but then when they know each other deeply spents time together there feeling gona change . its not the same enemies to lovers story its diff its unique really best ... both

Because of the concept of powers is similar to that in alchemy of souls. But story line is some what different than that.

Both drama have: soul-body swapping, martial arts, intrigues, plots, battles and in general they share a similar atmosphere.