A number of clips capturing the post-match clean-up, after the majority of fans had left the stadium, were posted and shared on social media, earning the Japanese supporters widespread praise and high fives from the few remaining Colombia supporters, sporting the nation's striking yellow colours.
Senegal's coach, Aliou Cisse, who captained his side in 2002 to a stunning quarter-final finish, has said he is optimistic of Africa's chances at winning the ultimate prize, despite the dismal start to this year's tournament in Russian Federation.
After the Blue Samurai's achievement of being the first Asian team to beat a South American side in a World Cup match on June 19, fans celebrated by... staying back at the Saransk stadium in Russian Federation and tidying up after themselves.
"This is my favourite moment of the World Cup so far; Japan fans picking up litter after their victory vs Columbia", one user Tweeted.
Winless in their six previous World Cup games on European soil, Japan went ahead in the opening minutes thanks to a Shinji Kagawa penalty.
"You often hear people say that football is a reflection of culture".
Japan-based football journalist Scott McIntyre told the BBC's Andreas Illmer that cleanliness is an important virtue in all aspects of the country.
And then Senegal fans, after their Lions upset Poland, 2-1, followed suit. It is a habit drilled into citizens from a young age, with students expected to clean their school classrooms and hallways.
North said the fans take pride in showing others that they clean up and are respectful outside their country.
"Nigeria had one of the best African squads ever at the 1994 World Cup".