I think all the girls are based on real
Out there, must be someone who always fear or shy something, or airhead , or strong character etc. . But "based on" is different than "the same". None of the real girls can be this cute
)
Anyway, I like all character in K-ON, I want to make friend with all of them if ther are real(except Azunyan cause I love her . Azunyan is mine :">)