There was a child actor part for Mo Tae-hee in Brave New World, but <they say it was cut in the final edit for broadcast length... Based on the script snippets, it looks like Mo Tae-hee saved Cha Se-gye when they were kids. twt

https://x.com/i/status/2061078492712935752

Young Se-gye: Get lost.

lololol Cha Se-gye's temper has been like this since childhood..

Since it's not even a backstory between the male and female leads, I feel like it was unnecessary.

Source: https://theqoo.net/hot/4225221238