Aiko Ninomiya

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Aiko Ninomiya
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Gender: Female
Height: 136cm
Japanese Name: 二宮 藍子(にのみや あいこ)
Chinese Name: 二宫蓝子
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🎙️ Anime Voice Actor

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Honoka Inoue
Honoka Inoue
Japanese(Anime、Voice Actor)

🎬 Appearing Anime

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Slow Loop
Slow Loop
Release date: Jan. 7, 2022

Character Setting

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Aiko Ninomiya is a lively and emotional girl introduced in the series Slow Loop. She first appears as a 10-year-old in the 5th grade and has a unique mix of bold actions and innocent heart. Despite her fear of boys, bugs, and live fish, she joins fishing activities to be close to her friend Futaba Fukumoto. Aiko's jealousy and special feelings for Futaba often lead to impulsive and dramatic moments. She has a loving family, with a university professor father and a high-achieving older brother. The story follows her daily school life, friendships, and personal struggles about growing up and staying connected to her friends.

Aiko has medium-length gray hair with four hairpins that make her easy to recognize.

Her eyes are purple and sharp, giving her a confident look.

She is 136 cm tall.

Aiko is full of emotions and not afraid to act on her feelings.

She can be mischievous, like when she sneaks a look at her mother's makeup.

She is brave in some ways but still has fears, such as being uncomfortable with boys, insects, and live fish.

Even so, she is willing to challenge her fears for her friends.

Aiko is competitive and wants to be number one in the things she loves.

She is not good at studying but is athletic and energetic.

  • Age: 10 at first appearance, later 11.
  • Birthday: September 22.
  • Zodiac: Virgo.
  • Height: 136 cm.
  • School: Started in 5th Grade, later moved up to 6th Grade, Class 2.
  • Family: Lives with her father (a university professor), mother, and older brother who goes to a famous national university.

Aiko is skilled in sports and loves physical activities.

She is less confident in her studies and struggles in schoolwork.

She cannot handle live animals or bugs unless it is for Futaba’s sake.

Aiko is very close to Futaba Fukumoto, her classmate and best friend.

Her feelings for Futaba are strong, sometimes even romantic, and she gets jealous when Futaba spends time with others, like Hiyori Minagi.

She also admires Koi Yoshinaga, calling her “an adult” for her mature and helpful nature.

Aiko finds it hard to get along with Yamazaki, and they often argue.

Despite her fear of boys, she still joins in activities with them because of Futaba.

Aiko’s look and personality come mostly from her mother.

She stands out in her class for her antics, especially when it comes to Futaba.

Aiko’s fears of touching living creatures are unique to her among the main characters.

Her brother’s path inspired her own worries about the future and school choices.

  • "You should be able to choose too, Futaba!"

Jealousy and Friendship

Aiko has a playful side, like looking at her mom’s makeup or making bold comments about Futaba.

When Futaba’s essay wins a contest, Aiko gets excited and insists on preparing a special outfit for her.

But if Futaba is unsure about presenting, Aiko suddenly says she won’t let her go on stage.

At the actual school assembly, Aiko even cries just from hearing Futaba’s name read out loud.

Trying to Be Included

When she sees Futaba making plans to go fishing with Hiyori Minagi, Aiko quickly jumps in and insists on joining too.

She often takes photos of Futaba during their fishing trips, even if it seems a bit over the top.

Talking About Her Feelings

During a group camping trip, Aiko opens up to Koi Yoshinaga about her confusing feelings for Futaba.

She becomes a little jealous but is comforted when Koi tells her that she actually makes Futaba happy and is a safe friend for her.

Fears and Family Support

Aiko worries she will have to go to a different school because her brother did, and she might be separated from Futaba.

Her parents ease her fears by telling her she doesn’t have to take the same path as her brother, letting her feel better and stay close to her friends.

Although Aiko is afraid of living creatures, she works hard to get over her fears to share experiences with her friends.

Her struggles and growth make her both funny and relatable.

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(Last edited time: May 19, 2025, 5:19 p.m.)

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