Recommendations

Similarities
-Age gap!
-Both are BL
-Based in the countryside of Thailand
-Tonhon, who plays the lead in Lost in the Woods, and Pong, who plays the lead in 180 Degree Longitude, are both former Nadao actors

They're both set in school, and deal with some family issues that don't usually get brought up much in BLs. Blueming is a bit more serious about it in how they deal with theirs but both are surprisingly realistic in how they approach the issues.

As a result, both series have a lot of heart in them through the sense of honesty in how both are written and how the plot progresses. Blueming is a little more bittersweet and serious than 21 days but still ends happily, plus they have more kisses and sweet moments between the couple.

Both shows also have a one sided enemies/rivals to lovers main pair with a prickly tsundere.

Both shows figure nadao actors and have this very quiet, thoughtful and artistic vibe to them that is rarely seen in bl shows

Similarities
-Both are BLs but focus on other storylines more
-Filmed in beautiful and unique locations in Thailand
-Excellent script, solid plot, and great production value
-Both shows' leads try to learn and understand someone close to them that had passed away
-Incredible OST

Differences
-The aesthetic in 180 Degree Longitude is overall darker (including music)
-180 Degree Longitude doesn't have obvious product placements and weird sound effects that lots of other Thai series put in (including ATOTS)
-ATOTS focuses on self-growth and the village, whereas 180 Degree Longitude focuses more on family

Both have a smart female lead who schemes to make her life better. There’s a little crime solving in both. The FLs have multiple suitors and they have significant relationships with the SMLs, not just one sided pining. They have a similar flavor

**This is a recut version of the original drama, which has reduced the number of episodes from 68 to 24 and has a different ending than the originally aired drama. One person can have a tremendous impact on how you view your life. Xiao Liang is the CEO of the world’s largest diamond company. He is frugal, exact and very meticulous in the way he conducts his business and himself. He prefers to focus his energies on his work and believes that interpersonal relationships are a waste of his time. But when Xiao Liang meets Mi Dou, this unexpected woman may change his entire worldview of his life and his work.

Due to her larger size, Mi Duo has always lacked confidence as her appearance has always caused her to face difficulties in her daily life. She falls in love at first sight when she sees Xiao Liang, a jewelry company president. However, seeing how there is no way they would ever match in appearance, she doesn't engage in a pursuit. A car accident forces her to go under surgery, one of which is cosmetic surgery. After the surgery, she has transformed into an ideal image of herself. Now with more confidence, Mi Duo successfully lands a job at Xiao Liang's company. She goes through success and failure in work, experiencing life very different from what she had been used to. With her friend, Lei Yi Ming, a surgeon, supporting her every step of the way, she begins to realize that appearances are just surface-level qualities and that there are more important things to strive for on the inside.

Ling Qi Sa is a man who is buried by his parents' gambling debts. With no way to pay back the money, he thought about going to the dark side by getting into the kidnap and ransom business. But instead of becoming a kidnapper, he ended up saving a girl from a real kidnapping. The girl turned out to be the sole heir of a conglomerate who faced these kinds of threats every day. In a case of a kidnapping gone wrong vs. a mistaken love confession, she hires him to be her butler and helps repay his parents' debts. Grateful to have gangster collectors off his back, he vows to protect her from harms, which is no easy task.

A prestigious private high school has students who rank academically at the top of the nation. The school's student council president is Miyuki Shirogane and their student council vice-president is Kaguya Shinomiya. They are attracted to each other, but do not confess their feelings for each other due to their stubborn pride. About a half a year has passed since they have kept their feelings private. Now, Miyuki Shirogane and Kaguya Shinomiya think the person who confesses first will be the loser. They both think of ways to make the other person confess first.

A prestigious private high school has students who rank academically at the top of the nation. The school's student council president is Miyuki Shirogane and their student council vice-president is Kaguya Shinomiya. They are attracted to each other, but do not confess their feelings for each other due to their stubborn pride. About a half a year has passed since they have kept their feelings private. Now, Miyuki Shirogane and Kaguya Shinomiya think the person who confesses first will be the loser. They both think of ways to make the other person confess first.

A prestigious private high school has students who rank academically at the top of the nation. The school's student council president is Miyuki Shirogane and their student council vice-president is Kaguya Shinomiya. They are attracted to each other, but do not confess their feelings for each other due to their stubborn pride. About a half a year has passed since they have kept their feelings private. Now, Miyuki Shirogane and Kaguya Shinomiya think the person who confesses first will be the loser. They both think of ways to make the other person confess first.

A prestigious private high school has students who rank academically at the top of the nation. The school's student council president is Miyuki Shirogane and their student council vice-president is Kaguya Shinomiya. They are attracted to each other, but do not confess their feelings for each other due to their stubborn pride. About a half a year has passed since they have kept their feelings private. Now, Miyuki Shirogane and Kaguya Shinomiya think the person who confesses first will be the loser. They both think of ways to make the other person confess first.

A prestigious private high school has students who rank academically at the top of the nation. The school's student council president is Miyuki Shirogane and their student council vice-president is Kaguya Shinomiya. They are attracted to each other, but do not confess their feelings for each other due to their stubborn pride. About a half a year has passed since they have kept their feelings private. Now, Miyuki Shirogane and Kaguya Shinomiya think the person who confesses first will be the loser. They both think of ways to make the other person confess first.

Yukimura Shinya and Himuro Ayame are two scientists that want to find out if love can be solved by a scientific theory. These two scientists also have feelings for each other and want to be able to solve their feelings through similar theoretical facts. With this perfect opportunity, these scientists will attempt to solve the theory of the love they express for each other.

both of these series are based on office romance trope where one of them had a crush on other after one heartfelt conversation.