Rio Futaba

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**Rio Futaba** (双葉 理央, *Futaba Rio*) is one of the main characters of the *Seishun Buta Yarou wa Bunny Girl Senpai no Yume wo Minai* series, who is a second-year student at Minegahara High School. She had been in the same class as Sakuta and Yuuma during their first year and is the sole member of the Science Club.

Rio's case of Adolescence Syndrome is explored in the third novel.

## Appearance

Rio is an attractive girl of average height. She has light brown eyes and grey hair, and wears glasses. She is primarily seen wearing her school uniform and her lab coat. Because her feminine parts developed before her classmates, Rio possesses a slender yet very voluptuous figure and a large bust, which she doesn't like.

During Rio's case of Adolescence Syndrome, the split version of her ties her hair in a ponytail and wears contacts instead of her usual glasses. After re-merging, Rio continues to wear glasses, but alternates between tying her hair up or not.

## Personality

Rio, who hosts her school's Science Club at one of its laboratories, comes across as a well-articulated and intelligent young woman with extensive knowledge of chemistry and quantum physics, albeit at the cost of sociability, as only one other person has ever frequented her club. She is often seen using lab apparatus to make coffee.

Rio is often blunt and to-the-point; she has a sharp sense of humor and is even more sarcastic and straightforward than Sakuta. Before experiencing it herself, she was unwilling to believe the existence of Adolescence Syndrome, but she did acknowledge the abnormal phenomenon it induces and connects them with various scientific theories and principles.

Despite her straightforwardness and somewhat cold exterior, she's still a kind, helpful and supportive person, consistently helping Sakuta in solving Puberty Syndrome cases. She's also more sensitive and insecure than she lets on, as seen in her arc where she deals with the self-consciousness about her early developed body.

Rio is dedicated to the Science Club such that she even goes to school during summer break in order to keep the Science Club afloat. The summer break is also when Rio's case of Adolescence Syndrome happens; both versions of Rio act almost similarly except for one difference - one of the Rio's seeks validation of her body and thus frequently posts pictures of them online.

## Background

Rio comes from a well-to-do family whose parents are often abroad for business; as a result, she often ends up looking after the Futaba family home herself. At some point in time, Rio's feminine body parts had developed much earlier than her classmates. Once she discovered the way some boys were ogling her, she began to hate her body and felt like "a truly filthy being".

During her first term as a first year, Rio attempted to buy some bread from a food truck, but was overwhelmed by the surrounding mob of students. Before she gave up, a student named Yuuma Kunimi handed her a chocolate cornet, which would cause her to develop feelings for him.

At some point during her time in the Science Club, she would come to be known for performing experiments that caused power outages as well as small fires.

## Relationships

### Sakuta Azusagawa

Sakuta is close friends with Rio, and the only frequent visitor to her Science Club. Sakuta came to respect Rio for not believing that he was linked to the hospitalizations of three others. Rio is the person Sakuta turns to for hints regarding the latest Adolescence Syndrome cases that he had encountered, even though she initially denied the existence of Adolescence Syndrome herself. Rio's bluntness and sarcasm is mostly towards Sakuta - she was the one who first called Sakuta a "rascal".

When Rio's Adolescence Syndrome manifests, Sakuta makes it a duty to visit both Rio's that were existing at once.

### Yuuma Kunimi

Yuuma is the boy Rio develops a crush on during their first year at Minegahara High, after being given her favorite bread by him on a day that Rio couldn't buy it for herself due to the bread stand being surrounded by students. However, by the second year Yuuma had moved on to be with Saki Kamisato. Nevertheless, during his basketball training sessions, Yuuma continues to frequently run by the window of the Science Club for Rio's sake, while Rio would often watch him play basketball.

During summer break, Yuuma is called over in the middle of one night by Sakuta just to see him and Rio, which is enough to make her cry. She feels better after joining Sakuta and Yuuma to set off fireworks on the beach that night. A week later, after both Rio's merge and they visit the same beach to watch a fireworks festival, Rio is able to confess to Kunimi, but stops him from responding, so that she doesn't start crying again.

### Mai Sakurajima

Although Rio helps Sakuta solve Mai's Adolescence Syndrome case, she doesn't meet Mai herself until suffering her own case of Adolescence Syndrome. With Mai's permission, Sakuta is able to host the Rio that was made homeless by the other's existence, provided that Mai stayed over at Sakuta's room as well. The other Rio, however, knows that Sakuta had used Mai's phone to contact her, thus keeps Mai's contact number even after merging with the first Rio, and is able to call Mai over after Sakuta came to her for help regarding Shoko Makinohara.

### Kaede Azusagawa

Rio knows of what happened to Sakuta's sister, as well as his feelings of regret over the event. During Rio's case of Adolescence Syndrome, the Rio that was made homeless and offered the chance to stay at Sakuta's place, helps tutor Kaede in math. In return, Kaede calls Rio by first-name basis.

## References

1. ↑ Light Novel Volume 3 - Chapter 2
2. ↑ Light Novel Volume 1