Code Geass: Hangyaku no Lelouch Picture Drama - Kiseki no Anniversary  

Code Geass: Lelouch of the Rebellion: Miraculous Anniversary, コードギアス 反逆のルルーシュ キセキのアニバーサリー, Code Geass: Lelouch of the Rebellion Picture Drama - A Miraculous Anniversary, Code Geass: Lelouch of the Rebellion Picture Drama - Miraculous Anniversary, コードギアス 反逆のルルーシュ キセキのBABA劇場

The characters of Code Geass create a time capsule. (Source: AniList)