At Ichikawa Mama Station in Ichikawa City, Chiba Prefecture, to coincide with Mother's Day on the 14th of this month, the name of the station has been changed to "Mama" in katakana. In addition, carnations are decorated on the premises, and caricatures of mothers drawn by local children are also on display.

Commemorative tickets with message cards are on sale to show your gratitude. The "M Mama" in the station name is written as 'Ma' in the true 'true' in a local place name.