The Male Lead's Little Lion Daughter - Vol. 1 Ch. 33

[MangaDex]

 

[BrunoUwU]

Poor pure Flo, she is too cute but get’s terrorised by his brother.

 

[BakedBanana]

And that's the tale of how these two became friends for life.
I don't actually know this, just making a guess.

 

[AzzoleOddone]