Actor Lee Si-eon and Seo Ji-seung are set to become parents.

On December 26, Story J Company confirmed that Lee Si-eon is expecting his first child four years after marriage and will welcome a son next year.

Lee Si-eon hinted at the news on December 25 via Instagram Stories, posting a "Merry Christmas" message alongside a balloon reading "Oh Baby." The blue balloon subtly suggested the baby's gender.

The couple tied the knot in 2021 and have shared glimpses of their daily life through the YouTube channel Sian's School. Lee Si-eon is also set to return to screens next year in Netflix's Bloodhounds 2.