Japan head coach Norimasa Hirai urged his team to sharpen up for the Rio de Janeiro Games as the national championships drew to a close on Sunday.
Japanese swimmers qualified for the Olympics in 34 events through the championships, the largest tally since the nation last hosted the Summer Games in Tokyo in 1964.
While Hirai was happy with that number, and the emergence of teenage female swimmers like Rikako Ikee and Runa Imai, he was expecting more from the household names like Kanako Watanabe, Natsumi Hoshi and Daiya Seto, who had all booked their places in Rio at last year's world championships in Kazan, Russia.