- The video depicts 16-year-old sumo debutant Kosei (160cm, 68kg) executing a precise underhook throw to defeat 39-year-old veteran Amamidake (180cm, 166kg) during the 2024 Kyushu Basho tournament in Japan's Jonokuchi division, a rare upset in a sport where size often dominates.

- Professional sumo lacks weight classes across its six divisions, pitting lightweights against heavyweights and emphasizing technique, balance, and leverage; studies on sumo kinetics show smaller wrestlers win about 15% of such mismatches through lower center of gravity.

- Posted by @DudespostingWs on November 12, 2025, the clip has garnered over 4 million views and 57,000 likes, sparking discussions on underdog triumphs and inspiring comparisons to manga like Hinomaru Sumo, while highlighting Kosei's potential as a prodigy.