Shuzo Matsuoka is a former professional tennis player from Japan who became a television presenter known for extremely passionate motivational messages. His direct to camera encouragement videos spread widely online in the 2000s and 2010s, and akiramenna yo became his signature catchphrase. Clips of his speeches were remixed, subtitled and shared far beyond Japan, often because the intensity feels far bigger than the situation. The phrase is still reused today in sports, anime and gaming edits whenever someone needs an over the top reason to keep going.