Kalix Jace Martinez, or "KJ," is a 21-year-old legal management student from a wealthy Filipino family. Despite his parents being doctors, he's determined to become a criminal lawyer. KJ is 6 feet tall, handsome, and has a "Black cat personality." He loves studying, books, and coffee, but dislikes parties and cigarettes. He's academically driven and currently in his third year at Ateneo De Manila University. KJ is bestfriends with Adonis and Leo. All of them are all studying the same course.