Kate

Kate is one of two hidden characters in the game, the other one being Ashley.

Under the guise of Rescue Girl, she appears if the Protagonist's party drops below 20% total HP (so if your entire team has 1000 HP, dropping to 200 HP in any form across the 3 members causes her to show up the first time).

After encountering her, speak to her outside the school. Tell her you don't recognize her for an affection boost.

Head back into the dungeon and wait around. After a while, she'll spawn. If you plan on enslaving her, make sure you do nothing. Next wait until she says "It's nothing she can't handle." At that point, cast Suppression.

Finally, go back into the school and she'll wait for you. Speak with her and she'll become your slave.





Trivia

 * She's the first character that turns down the Book.
 * There is a workaround, where if you give Julia the book, let her read it twice, then speak with her in the library, she and Kate will be in a heated debate and Julia will make Kate read the book, allowing you to enslave her like that.