"The bestselling Cupcake Diaries series is now available in graphic novel format! In this adaptation of the first book, after her best friend moves on, Katie finds a new group of friends and they form the Cupcake Club. Katie is miserable when her best friend is invited to join the Popular Girls Club and Katie is left out. Is there an Unpopular Girls Club she can join? Luckily, Katie finds her way with a great new group of friends--Mia, Emma, and Alexis--and...

All of Katie's friends in the Cupcake Club have outside interests, so Katie sets out to find an extracurricular activity, but when she makes the softball team, Katie realizes that team sports are harder than she expected.

Alexis wonders since the leader of the Popular Girls Club has moved away Callie might want to be friends again, but then Callie announces that the Popular Girls Club is baking cupcakes for the school fund-raiser.

Mia is still getting used to having her new stepdad and stepbrother around when she begins to struggle with writing in her Spanish class, and since her family, who speaks Spanish, is willing to help, Mia learns that she is lucky to have three parents.

Mia struggles to be nice to the new girl, Olivia Allen, after she makes pains to be nice and loans her some money only to discover that Olivia spends it to buy the exact same shoes Mia has been saving for.

Alexis is excited about the Cupcake Club job for the neighbor's BBQ/pool party because her crush, Matt will be there. Unfortunately, things don't go according to plan with a big test she can't concentrate on and nothing to wear. Alexis's big sister, Dylan, comes to the rescue.

Katie is about to burst when the rest of the Cupcake Club entrusts her with their secrets, but this group of best friends soon realizes that sharing and keeping secrets is what friends are for.

When Katie learns her mother's new boyfriend is her math teacher, Mr. Green, Katie is accused of getting special treatment in class, and it's the Cupcake Club to the rescue to help Katie deal with the rumors and the changes in her life.

In the midst of a terrible week, Mia receives a lucky charm from her cousins from Puerto Rico, and when her luck turns around, she attributes it to the charm, but when her bad luck returns, she must come to grips with the truth.

Mia enters a design-a-dress contest without knowing just how much work designing and sewing a dress could be. Things get eve worse when she tries to finish her creation during a Halloween cupcake party.