There are 214 Demons to track down in Shin Megami Tensei V. You can obtain Demons via Negotiation in battle or by fusing them using specific recipes. This page details the Haunt demon Preta, and contains information on all of its skills, stats, fusion combos and more.
Known as Gaki in Japanese, they are ghoulish demons of Buddhist lore. Greedy humans cast into the Preta realm become these unfortunate creatures. Any food they try to consume burns up in their mouth, fated to be tormented by never ending hunger and thirst.