2nd year high school student in Fumizuki Gakuen. Friend of Akihisa from 1st year.

Hideyoshi is one of the rare people with normal minds in Class F, but because of that he is often pressured by his classmates. According to his grandpa, Hideyoshi is an owner of an unbelievable beauty, so much that he is often called a girl―but really, he is a fine man. His loveliness even nominated him in the list of 'Guys who would look good in girl's outfit', sponsored by the Journalism club, but he was eventually dropped from the ranking for being 'unfair'. Because of his appearance, girls often forget his real gender, leaving Akihisa as the only one who recognizes him as a guy (though sometimes even Akihisa forgets this). In training camps, for the safety of his own and the others, he is given a private separate dressing room and bathroom. In school, there is a rumor that Hideyoshi is actually of the 3rd gender, dubbed "Hideyoshi". As with Akihisa's case, Hideyoshi's photos are secretly sold and bought―the price of his photo being 5 times higher than photos of Akihisa in girl outfits. He feels regretful for not being treated as a guy by many. However, given that he blushes his face when treated as a girl by Akihisa, delights when called a fool's friend, puts in tackles that are subtly off the point―it seems he doesn't hate it so much either. Therefore, this person is also not exactly normal.

He takes part in the Drama club and his speciality is vocal mimicry―be that a girl's or a boy's voice. Even though he is often not too willing to act, once a situation occurs, he perfectly deals with his given role, thanks to his excessive drama spirit. Part of the reason why he is in Class F is because he too absorbed into drama and couldn't keep up the grades. It seems he is especially weak in Classic Literature.

In contrast to his lovely outlook, he has an extremely strong stomach ('Steel Stomach' as called by himself) that can even take in a potato seed. However, even such stomach cannot stand against Mizuki's mighty lunch.

His name originates from 'Toyotomi Hideyoshi' and his old name 'Kinoshita Toukichirou'.

His shoukanjuu (summoned beast)'s equipments are blue pants and Naginata. Occult version is Nekomata (ghost cat girl), obviously influenced from the nature 'Cuteness'.

Hideyoshi is ranked 1st in Male Characters and 10th in Female Characters of the 2009 version of "Kono Light Novel ga Sugoi! (このライトノベルがすごい!)", scoring a cumulative 2nd place from all characters.