愛宕 洋榎

Atago is a third-year at Himematsu High School and the older sister of Kinue, the cousin of Funakubo and the president of the school's Mahjong Club. She also plays as the lieutenant, which is considered the renowned spot of amazing players from Himematsu. 

Hiroe is a loud, confident, and rather rude person. She has very little reservations about gloating, calling out her opponents, or calling them names, but is not mean-spirited about it, just tactless. However she is kind to all of her teammates and cheers them on. Despite what her personality suggests, she is not so prideful as to prevent herself from playing into a much weaker hand to avoid giving more points to other players.

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. Hiroe can gauge her opponent's skill levels very accurately, and changes her playing style (notably keeping damaten or not) accordingly.