Not that much news about him because we can fairly assume that this fight is not really a big fight to consider.
Indeed since it is a non-title fight, it isn't big that big but it is a very interesting fight since Akaho has floored several Filipino boxers. I think he is not beaten in his fight against Filipino fighter so this is somehow intriguing if Akaho will continue his streak of beating Filipino fighter or Casimero will avenge his fellow Filipinos that loses to Akaho. Take note Akaho last fight was against a Filipino boxer Edrin Dapudong whom he knocked out in the first round last September 3, 2022 at the Korakuen Hall in Tokyo, Japan.[1]
True, 118 lbs was really a problem for him and I think his body can't no longer go that low without giving him any problems. So it's a right move for him to go 122 lbs, and I will speculate that he won't have a problem making this weight this time. If his walking weight is around 126 - 130 lbs, then it's easy to shed that 5 lbs or more in the 3-4 months that he will go full and hard training. And I will also assumed that he will get someone to monitor his weight along the way just to make sure that there will be no issues in his new weight class.
With his possible natural weight division, I believe Casimero will perform better. Since he has no issue of overtraining just to meet the requirement, he possibly have maximum energy to fight this match. So I expect a better performing Casimero than when he is on his previous weight category.
[1]
https://cebudailynews.inquirer.net/469607/casimeros-comeback-fight-set-on-dec-3