It seems you are referring to a title or phrase that is not immediately recognizable in mainstream anime, manga, or light novel databases. The closest match I can think of is Shinsekai yori (From the New World), but "Shinseki no Ko to O Tomori" does not directly correspond to a known work.
: The anime first premiered around October 20, 2023. Running Time : Approximately 11 to 15 minutes per episode. Genres : Romance, Adult, Slice of Life. Common Confusions with Other Series shinseki no ko to o tomori
The opening theme song, , broke the internet. It is an upbeat, chaotic masterpiece that captures the duality of the show—sounding cheerful while describing a dark, hidden life. If you haven't heard it yet, give it a listen; it’s the fastest song to reach 1 billion streams in history for a reason! It seems you are referring to a title