I think the reason is the Hishimi Trainer has more noticible personality, like using english and various gimmiks to make Hishimi train harder while praising her non-stop.
"anyway, here's a new medicine i just made" "cool" *grows a third eye*
Even if you finish at number two,Miracle, you're the BEST IN THE WOOOOORLD!"SEKAI ICHIIIIIII!"The new guy they hired as trainer this time is a pretty weird person.Sheesh... we have nothing but strange people here. All gathered together in this academy.you're still NUMBER ONE in the WHOLE WIDE WOOOORLD!!!