That is because Akaho never retaliate on the trash talk of Casimero. there is even a video clip where Casimero is somhow annoyed that Akaho do not trash talk his opponent. Since Casimero is trying to hype the fight via trash-talk, his attempt to hype the fight failed because Akaho did not participate.[1]
Remember in boxing, it takes two to tango so Casimero is kinda annoyed when Akaho did not agree to trash talk with him.Maybe Akaho's personality is not a trash-talking type which is why he chose not to engage in a word war with Casimero which is a good thing also because most of the Japanese boxers are not known with that type or at least I have not known one.
Hyped or not this fight will go as planned as this is not a big fight that the boxing community anticipates, i mean this is just another fight that the Korean promoters want to stage to add entertainment to their casino but also a must-win for Casimero.
Few days left before the fight but still i have not seen the odds for this fight, excited to see who is the favorite and to what extent.