Did you notice that in the Korean culture many Koreans tend to take into consideration the importance of blood type? They tend to believe that a different blood type will show certain characteristics about someone's personality.
With that being said, many K-Pop fans are also curious about the blood type of their favorite idols.
Some fans noticed that even though their group name is called AB6IX, none of the members actually are of blood type AB!
As for Apink members, none of them have blood type A!
Even though it may seems like a small detail, many fans actually found it interesting to see how the name of K-Pop groups fall together with 'loop holes' fans managed to catch.
Other examples also include AB6IX having 5 members despite the number 6 included and also SEVENTEEN having only 13 members.
Are there any examples you can think of?