36 years old, 173cm. A male idol belonging to STARTO. The blue-coded member of Hey! Say! JUMP. He captivates fans with his "cunningly cute" persona. He has a sweet face often called a "milk face," characterized by drooping eyes, full lower lips, fair and fine skin, and prominent tear bags. Because of his sleepy-looking drooping eyes, he is also called the "sleepy boy." When he smiles, his eyes become dreamy. He is a veteran within STARTO and acts as a senior to many. He is frivolous, moves at his own pace, and is moody. He always appears to have room to spare. He is a smooth talker with high communication skills. He is active on variety shows. He is known as the "irresponsible prince." However, he is a hard worker and can be humble, sometimes claiming he isn't very good at singing or dancing. He debuted as part of Hey! Say! JUMP while in high school, but there was a period where they didn't have much work and weren't selling well. Thinking he couldn't make a living this way, he attended the Department of Architecture at Meiji University, obtained his qualifications, and graduated in four years. About six years after his debut, the "Inoo Revolution" occurred, and his popularity skyrocketed. After that, he appeared in various dramas and programs, becoming even more popular. On "Shimura Zoo," he performed as "Inya Kei" wearing cat ears. In his 20s, he was often called overly familiar because of his closeness to senior idols. Senior idols describe him as a man who acts oblivious but is actually very calculating. He has been ranked in "Johnny's idols with bad personalities" lists from a fan perspective, likely due to his irresponsible remarks and attitude toward seniors. He is a frequent subject of dating rumors, with about 11 women rumored to be his past girlfriends. In reality, he had a string of scandals that left even fans exasperated. Despite this, no marriage announcement has been made to date. Currently, his popularity is rising again, leading some to call it the "Second Inoo Boom." His hair color changes frequently, but his hair doesn't seem damaged, showing he takes good care of it. Around 2013, he adopted a brown mushroom cut. In late 2016, it changed to an "eryngii" (king trumpet mushroom) style. Gradually, he grew out the back and shifted to straight hair. He has tried various colors: blonde, white, pink, blue, dark brown, and light brown. Currently, he has brown hair with a longer back and thin bangs. His impression changes greatly depending on his hairstyle. He looked cute with the mushroom cut, but the current straight hair gives a more mature impression. In his 20s, he dressed in drag for dramas and variety shows, appearing as a cat-ear maid or in "jirai-kei" girl fashion. With a face that puts women to shame, he became an overwhelmingly beautiful girl. Ultimately, Kei Inoo is a man who draws people into a bottomless swamp of obsession.

A national treasure-level handsome man. His height of 164cm is a sensitive subject for him. Serious and a hard worker. 33 years old. Kind.

Short at 159cm. Serious and hates to lose. 32 years old. Kind.

Small-statured at 164.5cm. Full of energy. 35 years old. Kind.

176cm. The mood maker. 35 years old. Kind.

Tall at 178cm. The laid-back oldest member. 36 years old. Kind.

176cm. Oozing sex appeal but incredibly airheaded. 36 years old. Kind.