A sex education book for upper elementary girls, compiled by Dr. Ahn Myoung-Ock, a gynecologist, and Hwang Mi-na, a cartoonist.
In this book. Luna Llena, a 5th grader in elementary school who has just started menarche, asks Dr. Amo various questions about women's bodies and sex. So girls can learn all the common sense about sex, which they were embarrassed to ask even their moms. Specially arranged in the back are Q&As that teenagers might be curious about.

First E-mail · To whom it may concern
Second E-mail · I need a friend to talk to.
Third E-mail · I have lumps in my breasts.
Fourth E-mail · Why are my breasts getting bigger?
Fifth E-mail · It’s okay not to wear bras, but a sports bra is the choice if you decide to wear one.
Sixth E-mail · Oh, no! Hair!!!!
Seventh E-mail · This is how the body grows up.
Eighth E-mail · Oh, no! I got blood on my underwear.
Ninth E-mail · Menstruation begins.
Tenth E-mail · What is menstruation?
Video E-mail · Don’t just sit on the public toilets
Eleventh E-mail · Which sanitary napkins are good?
Video E-mail · How do we use a tampon?
Twelfth E-mail · My boyfriend moved next door!
Thirteenth E-mail · What did people done when there were no sanitary napkins?
Fourteenth E-mail · Invention of sanitary napkins
Fifteenth E-mail · Here is what you do during periods of heavy flow.
Sixteenth E-mail · Be careful of these things during your period.
Video E-mail · Menstruation discharge smells a bit fishy
Seventeenth E-mail · Panty liners
Eighteenth E-mail · Something yellow on my underwear?
Nineteenth E-mail · Vaginal discharge
Twentieth E-mail · Dear friend, I have bad cramps.
Twenty-first E-mail · Dysmenorrhea
Video E-mail · Dysmenorrhea
Twenty-second E-mail · I am scared of checkups.
Twenty-third E-mail · My Experience at the Gynecologist’s Office
Twenty-fourth E-mail · I received the test results.
Twenty-fifth E-mail · I don’t feel well before my period.
Twenty-sixth E-mail · You are not feeling well before your period either!
Twenty-seventh E-mail · Premenstrual Stress Syndrome (PMS)
Twenty-eighth E-mail · How to carry sanitary napkins
Twenty-ninth E-mail · It is natural that the menstrual flow turns dark as you near the end of your period.
Thirtieth E-mail · Boys are teasing me!
Thirty-first E-mail · I hate that boy.
Thirty-second E-mail · My mother told me...
Thirty-third E-mail · What we really wanted to know about men and women
Video E-mail · Everything We Really Wanted to Know
Thirty-fourth E-mail · Shouldn’t we forward our email exchanges to other friends?
Thirty-fifth E-mail · I got so many replies
Thirty-sixth E-mail · My name is Moon
What we want to know · Luna Llena’s Q&A