On October 13, she graduated from Hello Pro Egg along with the other members of THE Possible.
On September 27, 2015, Hashimoto changed her member color from orange to red.
On August 2, Ciao Bella Cinquetti disbanded and Hashimoto graduated along with the other members.
From November 20 to November 24, she performed in the stage play Okusuri no Kusuri.
On July 13, it was announced that she would be one of several current and former Hello! Project members starring in a new horror television drama based on the book, Hobonichi no Kaidan. It will begin airing on the dTV Channel's Hikari TV Channel+ on August 23 at 19:00 JST, and repeat airings will begin airing on TV Kanagawa on August 26 at 23:00 JST.
Her family owns two dogs, named Tiara and Rabu.
When Hashimoto joined Hello Pro Egg in June 2004, she was a sixth year elementary school student. She graduated from high school in March 2010.
- Hashimon (はしもん): Official nickname, given her since joining Hello Pro Egg. Used by members and fans.
- Ai (あい): Official nickname, given her since joining Hello Pro Egg. Used by members and fans.
- Ainyan (あいにゃん): Used by Hashida Mirei.
- Name: Hashimoto Aina (橋本愛奈)
- Nickname: Hashimon (はしもん), Ai (あい), Ainyan (あいにゃん)
- Birthdate:October 3, 1992
- Birthplace: Kanagawa, Japan
- Blood Type: B
- Height: 152 cm
- Western Zodiac: Libra
- Eastern Zodiac: Monkey
- Hello! Project Status:
- UP-FRONT GROUP Status:
- Ciao Bella Cinquetti Color:
- Orange (2009-2015)
- Red (2015-2018)
- Hello! Project Groups:
- Hello Pro Egg (2004-2007)
- Concert Units:
- Wonderful Hearts (2006–2007)
- Other Groups:
- Hobbies: Reading manga, sleeping
- Special Skills: Dance, piano, fast feet
- Specialty: Making strange faces, Cleaning
- Likes: Badminton, music, scribbling, purikura, tampering with hair
- Dislikes: Flavorless food, waking up early
- Favorite Food: Strawberries, rice, shrimp
- Least Favorite Food: Tomatoes, cucumbers
- Favorite Colors: Pink, white, black, light blue, yellow
- Favorite Animal: Koala
- Favorite Hello! Project Song: Suna wo Kamu You ni...NAMIDA
- Looks Up To: Matsuura Aya
- [2012.08.29] Nanja Korya?! (なんじゃこりゃ？！) (THE Possible Cover)
- [2013.04.10] Zenryoku Banzai! My Glory! (全力バンザーイ！My Glory！) (THE Possible Cover)
- [2013.09.11] Otome! Be Ambitious! (乙女! Be Ambitious!) (THE Possible Cover)
- [2007.06.13] Natsu no Tropical Musume. (夏のトロピカル娘。), featuring Akiyama Yurika, Hashimoto Aina
- [2010.10.02] Girigiri Out! (ギリギリアウト！)
- [2011.06.29] Kanzen Out! (完全アウト！)
Discography Featured InEdit
- Ciao Bella Cinquetti
- Ciao Bella Cinquetti
- Young DAYS!!
- Hatsukoi no Kakera
- Shushoku=GOHAN no Uta
- Kaze no Uwasa
- HAPPY 15
- Love Message!
- Kazoku e no Tegami
- Ijiwaru Crazy love
- Shiawase no Katachi
- Family ~Tabidachi no Asa~
- Watashi no Miryoku / LOVE^2 Paradise
- Nanja Korya?!
- Zenryoku Banzai! My Glory!
- Otome! Be Ambitious!
- Yuuki Super Ball!
- Omotesandou / Futakotamagawa / Never Never Give Up
- Doushiyou, Watashi / Ichigo Ichie
- High Tension! Wagga Jinsei! / Wadachi
- Nando mo Nando mo...
- Ganbarou Nippon Ai wa Katsu Singers
- Team Makenki
- [2006.04.01] Tokito Ami Hatsu Live '06 Haru ~The Nakano Sampler~ (時東ぁみ初ライブ '06春 ～ザ・中野サンプラ～)
- [2014-2018] The Girls Live
-  Hobonichi no Kaidan
- [2005.12] 34 Choume no Kiseki (34丁目の奇跡)
- [2006.08.02] CRY FOR HELP! ~Uchuu Station Chikaku no Baiten ni te~ (CRY FOR HELP!～宇宙ステーション近くの売店にて～)
-  Fushigi Yuugi (as Miaka Yuuki)
-  Fushigi Yuugi ~Shujaku Hen~ / Fushigi Yuugi ~Suzaku Hen~ (as Miaka Yuuki)
-  Fushigi Yuugi ~Seiryuu Hen~ (as Miaka Yuuki)
-  Okusuri no Kusuri (お薬のクスリ)
- She was the shortest member of Ciao Bella Cinquetti.
- "Girigiri Out" was her first solo image DVD release featuring footage taken in Australia.
- She participated in the audition for Hello! Project Kids, but failed.
- She compares herself to a squirrel.
- She has the same last name as former Hello Pro Kenshuusei members Hashimoto Nagisa and Hashimoto Momoko, and Hello Pro Kenshuusei Hokkaido member Hashimoto Ririka.
- ↑ http://ameblo.jp/aina-hashimoto/entry-11584423440.html
- ↑ "【更新】舞台『お薬のクスリ』出演！" (in Japanese). UP-FRONT CREATE. 2019-08-06.
- ↑ "新旧ハロプロメンバー主演で「ほぼ日の怪談。」ドラマ化、8月に配信・放送" (in Japanese). natalie. 2020-07-13.
- ↑ "ドラマ『ほぼ日の怪談。』に橋本愛奈が出演決定！" (in Japanese). UP-FRONT CREATE. 2020-07-14.
- ↑ "新旧ハロプロメンバー主演のドラマ「ほぼ日の怪談。」予告、全12話の場面写真も解禁" (in Japanese). natalie. 2020-08-19.