Justice Aguinaldo is currently in 8th grade in the University of the Philippines Integrated School in Diliman, Quezon City. She is the troop leader of the Girl Scouts of the Philippines — QC Troop 399. She is also an ambassador of Simply Hope, a youth organisation that primarily exists to serve society and people in need. She loves to read, learn new languages, and draw traditional and digital art. Her love for studying Philippine history inspired her to write her first book, The Last General.