I Hear Your Voice (2013)

If you were looking for romance younger guy-older woman [and noona is interested in other guy], you should watch Flower Boy Ramen Shop. The topic is quite different (FBRS is romcom), but they have something in common.

Both are romances with an age gap between the main couple (younger ML and older FL).
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Both are about the ML having the ability to hear people's thoughts, resulting in him becoming somewhat jaded with the world.

Same actors (Lee Bo Young).. with law, detective, full mystery background sound intetesting..

noona romance that makes it a bit different from the norm. Also both the male leads act immature when the female lead needs to be comforted but become mature when the female lead needs someone to lean on.

Both feature string, Career driven FL’s with darks pasts. These girls have both survived poverty and violence and pulled themselves up by their bootstraps to become hard hitting lawyers, although that’s less apparent in IHYV till later. They both meet badass (but still softies on the insides) ML’s who are completely smitten from the get go. Hyena doesn’t have the supernatural element that IHYV does, but it does have some kickass court cases that are much more plausible. If you like court dramas, both of these are good fits, though Hyena is more exhilarating and less tear your hair out, IMO.

Both have characters who can read minds/hear thoughts.
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They are both Amazing Revenge drama, (Remember) is more melodramatic and sad story than (I Hear Your Voice) .
The both are oriented about law and wrongful murder case, with memory loss in them .
They both feature awesome Villain .
Both are good Drama worth watching

Both MC have the abilities to read people's mind, but this kdrama is about revenge and there's also a romance involved.

Same vibes
The guy can hear people thoughts whereas FL has Super vision.
Murder involved where both have to solve

Also a criminal romance, both with some special out of this world aspects and in both main leads are implicated in a criminal case and a criminal wants to kill them.

Abyss: there's this magical ball that can revive people, the female lead is a prosecurator

I hear your voice: the guy is able to hear peoples voices when he looks in their eyes, the female lead is an attorney

They are totally different plots but have a supernatural powers in both.
Both have a crimes and action themes and love triangle.

Strong women do bong soon is more comedic, the female inherited from her mother a superpower strength.

I hear your voice is more serious, the male lead began to be able to read minds after his father was killed.

They are both about a young boy who is wronged by the law. In both cases the boys have super-abilities (one is more ..fantastical than the other). Both stories also contain an older noona through whom the boy's goal of bringing the criminal to court is accomplished. This noona also serves as the love interest.

There are even parallel scenes.

In other words, they are pretty much the same, except for casting, music, and circumstantial differences. Soo Ha and Dae Gu would find they have waayyy tooo much in common, if they met.

Oh, but there is one notable difference: Hye Sun is bold and sassy throughout the show, Soo Soon only manages to be bold and sassy while she's still a teenager. That side of Soo Soon dies out once she becomes an adult.

Older woman younger man romance in both dramas. In both dramas, chemistry between main leads are good.

Both are romances with an age gap between the main couple. Both MLs fall first and pursue the FL who is reluctant due to the age difference.