|Birthdate||October 3, 1997|
|Current Age||26 Years Old|
|Social Networks||7gogo / Instagram / Twitter|
|Idol Career Info|
|Former Team||Regular Members|
|Debuted||June 2013 / 15th Generation|
- 1 Catchphrase
- 2 Trivia
- 3 History
- 4 AKB48 Senbatsu Elections
- 5 AKB48 Janken Tournaments
- 6 Team History
- 7 Singles Participation
- 8 Albums Participation
- 9 Units
- 9.1 Jankenmin
- 9.2 Stage Units
- 9.3 Concert Units
- 9.3.1 AKB48 Group Kenkyuusei Concert ~Oshimen Hayai Mono Gachi~
- 9.3.2 AKB48 8th Anniversary
- 9.3.3 AKB48 Kouhaku Utagassen 2013
- 9.3.4 AKB48 Zenkoku Tour 2014
- 9.3.5 AKB48 9th Anniversary
- 9.3.6 AKB48 Kouhaku Utagassen 2014
- 9.3.7 Kojimatsuri ～Kojima Haruna Kanshasai～
- 9.3.8 AKB48 Group Seijin Shiki Concert ~Otona ni Nanka Naru Mono ka~
- 9.3.9 AKB48 Tandoku Concert ~Jabajatte Nani?~
- 9.3.10 AKB48 Team K Tandoku Concert 〜Team K no K tte nan no K?〜
- 9.3.11 AKB48 Zenkoku Tour 2019 ～Tanoshii bakari ga AKB!～
- 9.3.12 MX Matsuri! AKB48 60th Single "Hisashiburi no Lipgloss" Announcement Commemoration Concert in Budokan 2022
- 9.3.13 AKB48 Current Team Final Concert 2023 in KT Zepp Yokohama 〜To Be Continued〜
- 9.3.14 MX Matsuri AKB48 62nd Single "Idol Nanka Janakattara" Release Commemoration Concert
- 10 Media Appearances
- 11 Stage Plays
- 12 Gallery
- Yokoyama CHIIMU K no 26-sai, Yumoto Ami desu. Yoroshiku onegaishimasu.
- (I'm Yumoto Ami from Yokoyama Team K, 26-years old. I'll be in your care.)
- Favorite AKB48 stage song: Kaiyuugyo no Capacity
- Favorite food: Strawberry
- Favorite drink: Acai Juice
- Favorite subject: Physical education
- Favorite sports: Volleyball, dance
- Favorite animal: Dog
- Favorite artist: E-girls (girl group)
- Admired members: Yokoyama Yui
- Close friends with: Nozawa Rena, Hori Miona
- She is former classmates with Hori Miona, and the two have visited Tokyo Disneyland together in private.
- She is the oldest member in AKB48 15th Generation.
- She has a younger brother.
- She is a skilled dancer and athlete. She can do backflips and other gymnastics moves.
- She first learned how to backflip in 5th grade of elementary school.
- Staff members have described her as a calm person who transforms during performances, showing strong moves and acrobatics.
- She shares the same exact birthday with former member Takahashi Juri (October 3rd, 1997).
- She is a member of the unofficial "Aoichigo" sub-unit with Fukuoka Seina, Ichikawa Manami and Komiyama Haruka.
- She was a member of the omurice team in the AKB48 Cooking Senbatsu Competition.
- On January 19, joined AKB48 as a member of the 15th Generation.
- On April 30, had her theater debut as a background dancer for Team K 1st Waiting Stage.
- On June 5, was part of the AKB48 Members#Kenkyuusei concert Oshimen Hayai Mono Gachi.
- On June 9, was part of the Kenkyuusei Stage Pajama Drive.
- On September 19, ranked #16 in the 4th Janken Taikai, thus her first senbatsu participation being Kimi no Hohoemi wo Yume ni Miru, released on December, 11.
- On February 24, was promoted to Yokoyama Team K during the AKB48 Group Daisokaku Matsuri shuffle.
- On April 29th, had her first appearance on AKBINGO!.
- On May 7, was part of the Shonichi for the RESET Stage Revival.
- On March 26, was announced to be part of the new Minegishi Team K during the AKB48 Spring Shuffle 2015.
- On November 30, was part of the Shonichi for Saishuu Bell ga Naru.
- On October 10, ranked 12 in the 2016 Janken Tournament. She was part of the sub-unit that released the B-side for the Janken Single "Sakasazaka", titled Kiseki no Door.
- On September 24, participated in the AKB48 Group Unit Janken Tournament 2017 as part of the sub-unit "Dancing Cats" together with Ichikawa Manami and Tano Yuka. They lost in the first round.
- On October 9th, had her final appearance on AKBINGO!.
- On December 8th, at the AKB48 16th Anniversary Team Shuffle, it was announced she would stay with Taguchi Team K.
- From January 19th to 23rd, appeared in the stage play "Shoot OUT!" (シュートOUT！) as Koganei Minami.
- On April 6th, was part of the senshuuraku performance for Team K's RESET stage.
- On April 19th, officially joined Taguchi Team K.
- On June 4th and 11th, appeared in episodes 3 and 4 of AKB48 no Uta (AKB48の歌).
- On December 2nd, had her first appearance on AKB48 Sayonara Mouri-san (AKB48サヨナラ毛利さん).
- On August 19, announced her graduation.
- On October 17, transferred to AKB48 Regular Members after the disbandment of Team K.
AKB48 Senbatsu Elections
- 6th Senbatsu Election - Not Ranked
- 7th Senbatsu Election - Not Ranked
- 8th Senbatsu Election - Not Ranked
- 9th Senbatsu Election - Not Ranked
- 10th Senbatsu Election - Not Ranked
AKB48 Janken Tournaments
- 4th Janken Taikai - #16 (Lost to Natori Wakana)
- 5th Janken Taikai - Round 2 (Lost to Maeda Ami)
- 6th Janken Taikai - Round 3 (Lost to Nakanishi Chiyori)
- 7th Janken Taikai - #2 (Lost to Tanabe Miku)
- 8th Janken Taikai - Round 1 (Lost to Genghis Cat)
- AKB48 Kenkyuusei → Team K → Regular Members → Graduation
- Chireba ii no ni... (Tsugi no Ashiato)
- Conveyor (Koko ga Rhodes da, Koko de tobe!)
- Ai no Shisha (0 to 1 no Aida)
MX Matsuri! AKB48 60th Single "Hisashiburi no Lipgloss" Announcement Commemoration Concert in Budokan 2022
- New Team Concert
- Yaban na Kyuuai (Center)
- Day 1
- AKBINGO! (2014 - 2018)
- Dance Channel "KARIMASU go to SKOOL!" (2020) / Episode 60 + 61
- AKB48 Sayonara Mouri-san (AKB48サヨナラ毛利さん) (2022 - 2023)
- Shout OUT (シュートOUT！) (2022) - Koganei Minami (小金井みなみ)
- AKB48 no Uta (AKB48の歌) (2022) - Episodes 3 & 4