Red Velvet's Irene and Seulgi mirrored each other in their teaser interview for 'Monster'.

In the 'One Light Two Shadows' interview above, Irene and Seulgi mirror one another and try to give answers they think the other would come up with. From everything from their strengths and weaknesses to answering riddles, the two Red Velvet members respond with their best shot.

Irene and Seulgi are making a unit debut with 'Monster' on July 6 KST. Check out their interview above!