I think Kang asked Taeyang to call him that.
Correct! And also it was said previously that Kang agreed for her to call him that when Jooheon got after her. Translation was verified by a fluent speaker as well.
omg thank you for making it clear, if my comment may appear rude my apologies
No, I understand and especially in this manwah where the translation has been off. It gives me more things to look for or to verify
hi question. why "Daddy-Hyung"?? not daddy-ahjussi or daddy-oppa? hyung is use for male ?? im confused someone explain.