Hiroe Atago is a third-year student at Himematsu High School in South Osaka and a supporting character in the manga "Saki". She presents herself as a boastful character and can be seen by others as somewhat rude and tactless. She is the older sister of teammate Kinue Atago.

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Hiroe uses traps and bluffs to trick her opponents into playing into her hand. She can also anticipate her opponents' hands very accurately. This makes her a very efficient player, and she can accumulate points very quickly.