hello looking for any recommendations for any kdrama series where there are scenes of the handsome male lead getting tied up minus his shirt?

Maybe where his gf ties him to the bed, or perhaps an interrogation scene.

Thank you..

You can try this list here:

https://www.tmbdb.com/top-7-kdrama-shirtless-male-bondage-scenes/

and there's also other scenes I know of:

Iris TV Series Ep 7 - Lee Byung-hun interrogated by Japanese

The Slave Hunters TV series - Jang Hyuk and another actor can't remember get tortured.

In My Secret Terius, So Ji Sub gets tied up in episode 11 i think or 12.  Not shirtless, with simple rope but it was hot nonetheless.

Advance Bravely - See: https://lan-xichens.tumblr.com/post/652245467520991232/gong-jun-in-advance-bravely-%E7%9B%9B%E5%8A%BF-2017-bonus. It's a censored BL Chinese drama, not a K drama, and kind of crazy, but worth watching.