- Name: Arisawa Ichika (有澤一華)
- Birthdate: December 23, 2003
- Birthplace: Osaka, Japan
- Blood Type: O
- Hobbies: Eating, listening to music (analyzing), classical ballet
- Specialties: Violin, English conversation, piano (playing by ear)
- Looks Up To: Akiyama Mao, Hello! Project
- Hello! Project groups:
Arisawa Ichika participated in the 2020 audition "ANGERME" ONLY ONE Audition ~Watashi wo Tsukuru no wa Watashi~", but did not pass. Following the completion of the audition she was revealed to be one of two new Hello Pro Kenshuusei members through an official website announcement on November 4, 2020, alongside Ishiyama Sakura. They made their first appearance and were officially introduced at the "Hello! Project Kenshuusei Happyoukai 2020 12gatsu ~Hikari~ " on December 19, 2020.
Arisawa received the Hashimoto Director Award, given by UP-FRONT WORKS chief director Hashimoto Shin, for her performance of Morning Musume's "SONGS" at the Hello! Project Kenshuusei Happyoukai 2021 ~Haru no Koukai Jitsuryoku Shindan Test~ event on May 29, 2021.
On July 7, 2021 she was revealed to be one of three new members of Juice=Juice in a surprise reveal during episode #383 of Hello! Project Station. She would join the group alongside fellow Hello Pro Kenshuusei Ebata Kisaki, and Irie Risa, a winner from the joint Hello! Project "Juice=Juice" "Tsubaki Factory" Goudou Shin Member Audition. Their activities with the group began at the Hello! Project 2021 Summer Sapphire & Ruby concerts starting July 17.
- TV Programs
- [2020–2021] Hello Dream. (ハロドリ。)
- Her favorite types of music are Hello! Project, '70s & '80s Western music, classical, and jazz.
- Her favorite sports are shuttle run and karate.
- Her motto is "Nichinichi kore koujitsu" (日日是好日; Every day a good day).
- She enjoys making songs on her laptop.
- Her favorite food is shirataki noodles.