This is the most immediately recognizable element.
If we were to loosely translate "Us 1...", it could imply something like "Our First..." or "Me and You 1...", suggesting a beginning of a relationship, journey, or perhaps a daily diary-like entry into the life of a mother and her child or family. -Hei - Gobaku Moe Mama Tsurezure - Ep.01 -Us 1...