Genuine question but do you know what oppa means? If not youâre gonna have a lot more issues with 90% of dramas…
Theyâre not bio siblings tho Jiang muâs dad took him in before she was born because he was friends with zhaoâs dad and his dad passed away while racing so mu and zhao werenât raised as sibling zhao has just alway taken care of her since she was born as we see throughout the drama