There is a phrase "Lions March" that was also playfully used in the title of Chica Umino’s manga and anime about a boy shogi player, but, Mandela…
There is a term “Lions March” that was also playfully used in the title of Umino Chica-sensei’s manga and anime about a boy shogi player, but I think it’s Mandela Effect-speak. There’s a certain nostalgia to it, but honestly, I don’t know what it means. Even if you asked Umino Chica-sensei, since Umino-sensei is such a natural airhead, she’d probably answer, “I don’t know either.” The manga in question is titled “3-gatsu no Lion” (the series known in English as March Comes in Like a Lion).
This case is part of the Mandela Effect case database based on "The Window of Opportunity: A Guidepost to the Mandela Effect — The Ultra-Secret X-Files" by Aoyama Takuto.