This study analyzes Christian forgiveness counseling for Korean-Chinese migrants by integrating Kyung-Seung Ahn’s five-stage forgiveness theory—valorization, respect, invalidation of compensation, trust, and reconciliation—with Tim Keller’s concepts of vertical, internal, and horizontal forgiveness. Three participants, each having endured interpersonal wounds such as marital infidelity, divorce, parental criticism, and experiences of verbal or physical abuse, participated in ten 60-minute counseling sessions from March to May 2024. The counseling process included emotional journaling, forgiveness declarations, letter writing, and prayer as core techniques. At each stage, participants explored their emotions and wounds, fostering both spiritual reflection and personal insight. All participants showed positive changes, including improved emotional expression, restored self-efficacy, better interpersonal relationships, and increased hope for the future. The combined application of Ahn’s and Keller’s theories proved effective for both psychological recovery and spiritual healing, supporting the restoration of fractured and strained relationships. This research underscores that Christian forgiveness counseling can play a vital role in the psychological recovery, social adaptation, and interpersonal growth of cultural minorities, while also highlighting the need for developing culturally sensitive counseling programs.