OUR BABY BROTHER (PART 1)

"Mr. Kim, your baby brother is completely fine, you guys can take him ho...." - Doctor
"We don't want to." - Jin
"What?" - Doctor
"HE HAS NOTHING TO DO WITH US! HE'S NOT OUR BROTHER!!" - Yoongi
"He's a bad news. Please take him away." - Jin

What happened in their life, that blinded by their pain, the brothers mistook their love for Jungkook as a painful reminder of their loss?