Fake Fact Lips

Arranged relationship, blurring the lines.
Popular handsome man and weather forecaster Segasaki is actually a tyrant at home. Yoh, an ero-manga artist in a tight spot knows this very well. This is because the two of them are living together. More than that, it's because he cooks and cleans for Segasaki! To no surprise, in exchange for being provided food, he must "obey everything that Segasaki says". What comes from such a contract is?

Kanade Shinichiro, a working adult living in Tokyo, has decided to hide his homosexuality and never fall in love again due to bitter memories from his school days. One day, he reunites with his high school best friend, Mashiro Kosuke, who he once had a "special" crush on. After meeting for the first time in six years, the two face their pasts and begin to move forward while re-examining themselves. A heartwarming boys' love story about two people who sometimes hurt each other but also clumsily love each other.

Both of them queer love but main similarity is there is rivalry between main leads. During that rivalry, they fall in love (I don't want to give a spoiler about anything but the ones who started bet has similar intentions also)

Kazuma, back in Tokyo after returning from America, reunites with his middle school friend Ren, now the top designer at their company. It’s their first meeting in 10 years since an abrupt farewell. Ren was Kazuma’s best friend and first love, but he avoids discussing their past, fearing rejection due to his feelings for Kazuma. Despite this, the two reconnect one night.

both are enemies to lovers with the trope : the one who will fall in love with the other one first will lose
FFL is japanese but BB is thai, FFL is with a office setting while BB is during university
but both of them are really good !! with good pairing

A fake relationship that is not all that fake from beginning to the end.
Fukuhara Kota, a university student plagued by constant misfortune, struggles to make friends due to his embarrassing bad luck. One day, he is rescued by Shinomiya Naoya, a handsome student with supernatural good luck and many friends. Intrigued by Fukuhara, Shinomiya agrees to his request for friendship, though Fukuhara awkwardly phrases it, leading Shinomiya to mistakenly think he’s being asked out on a date.

A fake relationship that turns real.
Aoki has a crush on Hashimoto, the girl in the seat next to him in class. But he despairs when he borrows her eraser and sees she's written the name of another boy—Ida—on it. To make matters more confusing, Ida sees Aoki holding that very eraser and thinks Aoki has a crush on him!

Enemies to lovers type of story. Liking someone in secret.
Hira finds himself pulled into Kiyoi's gravity, following him everywhere and attending to his every need. Popularity comes easily to beautiful Kiyoi, who is always surrounded by his classmates. He uses his status to get what he wants, ordering around the boy who stares at him with his big eyes and seems to worship him like a god.

Both have a deliberately chaotic, underground sounding aesthetic. The names themselves feel playful, surreal, and slightly confrontational rather than polished or commercial. They seem to draw from punk's tradition of irony and anti-seriousness. Instead of straightforward band names, they use phrases that feel like inside jokes, absurdist art, or fragmented slogans. There's a DIY energy to both. Even without hearing the music, the names suggest something experimental, niche, and unconcerned with mainstream expectations. Both create a sense of tension between meaning and nonsense. "Punk Triangle" combines a genre with a geometric shape; "Fake Fact Lips" strings together words that almost make sense but remain ambiguous.

Rivalry, making bets...
It is not a simple thing to like someone because... many times, we dare not say anything! "If first place is the only way to make you see me, then I will never lose to you before you fall in love with me."

they are co-workers and rivals and at the same time, behind the doors, they have an affair in both show. And of course queer love story

idk i think the similarity in this is the rivalry (?????) they fight and then they fall in love (?)