Who is the mysterious guy in IU's Photo?

Remember a long long time ago, when we reported that IU took a rather intimate photo with a man during her teenage years, which caused a rage on the internet? See HERE

Well, the answer has been revealed...

Past sticker photos of a sweet couple posed surfaced. Male fans are in a ‘jealous rage’

Another post that male fans hate sorry manz 

Recently, photos of IU with an unknown male has surfaced on the net which caused some "disturbance in the force". Check out the translated article =)