在异界之门前，时间与空间交错，命运的轮盘重新转动，勇者的冒险即将启程。国产出轨

　　Without warning, millions of mysterious alien "doors" suddenly appear around the globe. In a rush to determine the reason for their arrival, mankind must work together to understand the purpose of these cosmic anomalies. Bizarre incidences occurring around the sentient doors leads humanity to question their own existence and an altered reality as they attempt to enter them.