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Both dramas have similar story trope where The ML get memory lost but with different reason. Both of ML is quite temperamental but changing softer and nicer when they were amnesia. Both of FL fallen pregnant with ML after the ML left (because of the amnesia). ML and FL met again after 5 years accidentally and the ML started to regain memory vaguely about the FL but the FL kept avoiding the ML. Both of FL kept denying the past relationship between her and ML and lied about their son existent.

Both are a love story between a human FL and a supernatural being ML (angel vs. god) who only has a short time on earth and is in danger of disappearing/fading away.

Both feature a human main character who are transplant recipients (eyes vs. heart) who end up falling in love with a supernatural being (angel vs. grim reaper). Both dramas have a tragic, beautiful, but melancholy feel but feature happy or open/hopeful endings.

Slow burn romance between an immortal being (god vs. grim reaper) and a human. Both have bittersweet open endings.

A love story between a mortal who can see a supernatural being and that immortal being. The immortal met the human when she/he was a child, therefore the human has now aged to an adult and the immortal being still looks the same. Both dramas have similar tone and vibes.

Both are a love story between a human and an immortal being. Both feature grim reapers as main characters, and common themes of life and death, loss, grief, and reincarnation. Both have bittersweet, very similar endings.

Both are Japanese BLs and are cute.
while in Boku mo Aitsu mo Shinrodesu (Both me and him are the grooms) its more of a coming-out thing, Fukou-kun wa Kiss Suru Shikanai! (Mr unlucky has no choice but to kiss) is more based on the relationship development

Both series have the main characters chase evil spirits and have special powers to achieve so, besides both main characters being orphans.

Both drama's lead is a doctor and in the process they also inspired their partner to step out of their comfort zone.

You'll love this one it is the perf combination of romance comedy and fiction .. Its a pretty popular drama most of yu might already know about it so this is for those who don't know this drama or dropped watching this .. Now go fast and add this on your watching list cuz you'll love it i bet

Powerful women that take revenge on their husbands.
Cheating.
Female centered.
Rich families.
Makjang type of drama.

Both are "Friends with Benefits" dramas about relationships which start out as meaningless interactions of simply physical intimacy but eventually turn into true love.

Both are historical dramas with a princess FL. Both MLs have suffered trauma and loss, and find their strength and healing in their love of the FL. Both dramas have surprising and unexpected happy endings of both MLs faking their deaths after a severe injury, and the FL going off with them to live a quiet life, despite being loosely based on tragic historical events.

Despite the difference in settings and plot, in both one of the lead's father murdered the other lead's family as well as trying to kill them. Despite this, the two leads become each other's healing.

Both dramas are about a guy who is trying to get his life back on track. One has left prison and the other has quit his job. The two main characters deal with past traumas and have family members to support them and stand by them.