Name: Arioka Daiki

| Profession: Singer, actor
| Birthdate: 1991.04.15
| Birthplace: Chiba Prefecture
| Blood Type: A
| Height: 164 cm
| Weight: 50 kg
| Agency: Johnny’s Jimusho
| Admired senpai: Katori Shingo
| Former groups: J.J. Express, Hey! Say! 7
| Talent: Football
| Fav. Sport: Soccer
| Fav. Subject: English
| Disliked Subject: Mathematics
| First Love: Primary School Year 1
| Favorite phrase: Powerful.
| Favorite song: Katori Shingo san’s solo “It Can’t be”
| Favorite movie: Armageddon.
| Favorite book: Switch o osu tokini “When you press the switch”.
| Favorite manga: Dragon ball
| Favorite ramen: Tonkotsu flavor.
| Favorite TV show: Showbiz Countdown.
| Favorite food: Omurice (omelets on top of fried rice)
| Least favorite food: Mayonaise and Umeboshi (pickled ume fruit*ume-plum/apricot*)
| Favorite emoticon: *smiley face* and *swirl*

Arioka Daiki is a member of the Johnnys group Hey! Say! JUMP.