A Digimon born in Digital City: Doromon was abandoned because of the dark power in his body. As a last resort, it began to escape. On the way to escape, a mysterious voice told him to find a human partner who could accept him and form a contract with him. The price was: the dark power would remain in his body. Once he encountered something exciting, he would go berserk. So Doromon embarked on a journey to find a partner and started adventures one after another. Everything starts and ends here.