When Lily and James Potter were killed by Voldemort, Janine decided to go to Hogwarts School of Witchcraft and Wizardry. When the time came for her to start school, she met Percy. They dated a while until Percy was kissing another girl and then got mad at Janine for being mad at him. She broke up with him. Janine became the keeper of the Slytherin Quiditch team in her second year. She met Oliver Wood through quiditch.

Oliver and Janine dated for four years. Oliver broke up with Janine because he didn't want to be dating a Slytherin girl. Malfoy tried to comfort her, but she hated Malfoy and told him to go away. Malfoy has always flirted with Janine, but she always rejects him.

Janine decided that she wanted to be a professor. (Even though she was extremely wealthy.) She loved the school and still felt like she had to learn more about her powers. (Even though she got all her owls and newts.)

At the night of the Yule Ball, Malfoy asked Janine to dance, and Janine agreed to. Malfoy tried to kiss her, but she used her wand to make his lips swell up before he could. Her powers were very powerful.

She has had some very bad luck though. Her heart was broken again after Cedric died. She didn't go to school for a week. She stayed with her Uncle Sirius.