sato: met furuya right before furuya’s graduation ceremony at the academy, does not remember him; akemi: met furuya and brought him to her parents clinic, does not remember him according to aoyama,
masumi: met hiro at train station platform 4 years ago when she was crying, remembers him clearly; yamamura (widely known for incompetence, lack observation skills): childhood friend of hiro’s, played together with him presumably when they’re like, younger than 8, remembers him, also remembers what he looks like clear enough to recognize the similarity between young hiro and grown up takaaki
(to be fair, masumi also remembers furuya)