There is a high probability that he really existed because his name appears in "Kudaraki" (Records of Paekche), one of three books of Paekche (Original Records of Paekche, Records of Paekche, and The New Selection of Paekche), whose chronology was almost accurate and which are considered to have been compiled based on historical materials in the same period.
編年がほぼ正しく同時代史料が元となったと考えられる百済三書のひとつ、百済記にその名が見えるので、実在の可能性が高い。