Duang Jai Nai Montra (2021)

In both these dramas, male lead is immortal being who is waiting to break his curse and holds a grudge against Female Lead. Both the stories revolves around the concept of reincarnation and takes place in different timelines.

similar past lovers/ reincarnation vibes
cursed male lead and powerful female lead
male lead in search of female lead for decades
female lead has no memories of the past

BOTH MALE LEADS HAVE BEEN LIVING/ AROUND FOR MORE THAN A THOUSAND YEARS
FLs KEEPS GETTING REINCARNATED AGAIN AND AGAIN DUE TO THEIR TRAGIC CURSE FROM THERE FIRST LIVES
Both MLS hold grudges against FL about there past tragic FATES BUT( THERE'S MORE TO IT WITH SOME INTERESTING TWISTS in The Curse of LOVE SERIES).
THEY WANT REVENGE AGAINST FL IN CURRENT TIMELINE
ALL OF THE HIDDEN SECRETS UNRAVEL OVER TIME THAT SPANS MORE THAN A THOUSAND YEARS IN BOTH STORIES

This also is about past lives except in this one it is the leading man who lives for a thousand years under a curse and in each lifetime of the leading lady he seeks her out. It is also a love hate relationship between the leads.

Both dealing with magic/supernatural and past lives
Both have stories about ancient kingdoms
Both involve 'true love' story
DJNM has more romantic scenes. KS has less but those scenes are heart fluttering because the leads have amazing chemistry
KS has better action and the mystery is more elaborate (oc the romance is still so good)

An immortal waits for centuries for a maiden to break a curse that prevents him from moving on. Even the promo art is reflective of each other.

The male lead has also been under a curse for 2000 years because of love.
Pachara was cursed by his lover named Matira. Because of the curse, Pachara becomes immortal without having the death and having the heartbeat. After thousands of years, he meets the artist named Praploy. As soon as he sees Praploy he feels that it was the reincarnation of his past love Matira. So he hates Praoploy and has conflicts with her. Is Praoploy really Matira who cursed Pachara? Will the hatred of Pachara towards Praoploy eventually turn into love?

In SWAS , ML is not immortal but the reincarnation of a man cursed by his lover in a past life and they meet again falling in love and healing their karma. SWAS is a mini serie.

The male lead in this drama waits a thousand years for his lover to be reincarnated. She is cursed to die young because of the mark she bares.