Helping looking for this drama.

 Irusu:

could it be moon embracing the sun?

https://mydramalist.com/3079-the-moon-that-embraces-the-sun

nope it came out some time after moon that embraces the sun. Its more recent than that.

Alice,  do you rem what website or app you watched this series from?

 Beanee:

Alice,  do you rem what website or app you watched this series from?

it would have most likely been on fastdrama

 Call Me Onee-sama:

the eternal love ?

https://mydramalist.com/24275-the-eternal-love

It's not eternal love, in the drama I'm looking for there are not two souls (people) in one body.

is it untouchable lovers?

update: I bet it's untouchable lovers

 mysteryqueen9:

I was thinking it could be "too late to say i loved you" 

that is the wrong era, it was set in an earlier time period.

Could it be the Chinese series: https://mydramalist.com/3953-xuan-yuan-sword-scar-of-sky ?

Lin Gengxin (Yuwen Yue in Princess Agents) plays the role of a King of the Northern Ta Ba tribe.  He loves the second princess of a desert tribe, but was ordered to marry her sister by the late Taba King.  The marriage breaks her heart, she leaves her homeland, and goes on an adventure, together with her future love interest,  to seek godly artifacts to revive her tribe.