New Stepsister

Lucy is 17 years old, she has a boyfriend who is Natsu. Lucy's father, Jude Heartfillia, passed away when Lucy was young and Lucy's mom, Layla Heartfillia, has struggled since then. One day Layla introduces Lucy to Takashi Lockser, Layla's fiance. Takashi has a daughter named Juvia Lockser. Juvia is 17 like Lucy.
Juvia and Lucy are soon to be Stepsisters, but Juvia loves Lucy more than just a sister.