Both of these dramas are similar. Due to an accident or an incident, the protagonist cursed to see or hear ghosts. The one time when he/she was free of ghost disturbance is being close (near vicinity) to a companion whose aura dispels ghosts. The time spent being near each other allows them to get acquainted and develop feelings for each other.

Though Fish Upon The Sky is not about time travel, the protagonist of Be My Favorite, in pursuit of his crush, ends up with the person he thought to be his love rival.

Somehow the protagonists in both of these series time warp to the future. The Past-Senger primary story is bl. The Warp Effect's bl is a side story.

Both of these are boy love series, and the plot involves romance and time travel (in this case both times jump into the future).

The plot of the Burger King ship of Hit Bite Love (2023) is very similar to My Love Mix-Up. Burger bookshare a workbook with fellow desk mate, King, during class. When Burger turned a page and saw a doodle professing a secret crush on King, he immediately tore that page out and hid the evidence by swallowing it. It turns out the workbook is borrowed from Ice, who Burger has a crush on. Therefore, he found that Ice likes King and not him. All the while not knowing it was a borrowed book, King has misunderstood the message from Burger. Considering that message, King flirts with Burger while he is being set up to meet Ice. The misunderstanding between all three leads them to re-evaluate their feelings.

Beside both are the bl romance genre, they are about living out the last days before the world ends.

The similarities between these two series are boys love dramas that have a son of the servant hide out with the rich family young master. All the while the servant investigates who's the attacker.

The two stories are about a lonely man living aimlessly who meets a stranger who turns out to be a reincarnated childhood pet of his.

The plots are similar where the former lovers are destined to reunite after many reincarnations. Also the fated lovers turn out to be of the same gender.

"Doujin Artist Nekoyashiki-Kun's Desire for Recognition Grows" is similar to "Oh! My Assistant" where Issae Kazama, a Jpop idol, is not only high school classmate but he is also a fan of Mamoru Nekoyashiki's drawings. It's just like Mu Yeong is Seon's fan.

I've not seen the The Love of Winter, but the trailer looks similar to Present Perfect movie. Both case have a heartbroken person getting away to heal his heart. Then he fell in love during the getaway.

Two strangers meet at a get-away-resort. Fate has them as next door neighbor which allows them to get to know each other and fast becoming friends then turn into lovers.