Tear-jerking drama with happy ending?

Hi, I would like to get watch drama with emotional drama with happy ending, if possible. Prefer sad ending if not possible with male lead. Don't recommend if FL end up with second ML.

Drama I like:

• Absolute Boyfriend
• Eternal Love / the movie as well
• I'm sorry I love you / JP version as well
• Angel's Last Mission
• A Korean Odyssey
• Are You Human Too?
• I'm Not A Robot 

• Just Between Lovers
• Crash Landing on You
• Love in the Moonlight (it starts out as a romcom but becomes a melo romance)
• A Piece of Your Mind (same FL as I am Not a Robot)
• The Princess's Man
• It's Okay, That's Love
• Arsenal Military Academy
• The Untamed
• The Princess Wei Young (They get a happy ending for a little while, but after a few years of living happily together and raising their son the ML dies from the effects of poison. He chose to give the only antidote for the poison to the FL knowing he would die as a result, so its a very romantic sacrifice and he was lucky to be able to rule, have a son, and live with the FL for a few years before his death. The FL takes power as Empress after his death, a role she was born for. So the ending is ultimately bitter sweet but very satisfying and the FL does not end up with the SML.)

 Aqua Nightingale:

Thought Untamed was BL, did they changed that in the drama adaptation?> 

It's BL, although mostly through subtext due to Chinese censorship. I literally cried while watching it (very rare for me), and although you have to connect a few dots due to the way the last scene is shot, the leads end up happy and together.