One night, Jungkook was rushed to the hospital because he was bleeding quite a lot due to gunfire from his enemy. His bodyguards ordered the doctors there to provide help, however, AB's blood stock at the hospital had run out.

"Please anyone with blood type AB to donate! we really need it right now..." one of the doctors talks and looks at the people in the hospital. If the doctor does not find people with blood type AB, their lives will be in danger.