Vertical Short Drama 'Good Child, Bad Child' | A Human Suspense of Distorted Sisters Born from Domestic Discrimination, the 'Protagonist' Sister and the 'Shadow' Sister, Now Available on the POPCORN App

『Good Child, Bad Child』Key Visual

On Friday, May 8, 2026, GOKKO Inc. will begin distributing the vertical short drama 'Good Child, Bad Child' on its 'POPCORN' app.

This work is a family human suspense that depicts an unassuming older sister, who has lived like an 'invisible child' in the shadow of her adorable younger sister, seizing an 'opportunity' to reverse roles and gradually transforming as if she were her younger sister.

The 'protagonist' was always the younger sister.

Family love, friends' glances, the atmosphere of the classroom—

In a home where everything revolved 'for Airi,' Shiori lived as if holding her breath.

Always thinking, '—What if I could be 'Airi'?'

Watch 'Good Child, Bad Child'

## Synopsis | The day my 'good self' becomes 'bad'

Shiori Mihara (Saaya Minase), a quiet and inconspicuous third-year high school student, has lived in the shadow of her younger sister, Airi Mihara (Chisa Hirose), who is adored by family and everyone around her as the 'protagonist.'

Casual words from her mother, Ayako (Mie Ota), and father, Tadashi (Ryoma Tanizawa), and the gazes directed at Airi—unconsciously accumulating domestic discrimination deepened day by day.

One day, Shiori makes a decision. She puts on makeup, styles her hair, and heads to school as her 'new self' for the first time. However, what awaited her was an event that immediately broke her spirit. Shiori sinks into emptiness.

Then, an 'opportunity' to reverse roles comes to her.

Shiori transforms as if she were 'Airi.' What will her family see at that moment when the 'good child' turns into the 'bad child'?

## Highlights

1. 'Good child' and 'bad child'—the moment their boundaries are reversed

An older sister, treated like an 'invisible child' by her family, becomes loved, shines, and takes everything, just like her younger sister. This role-reversal drama, born from small everyday distortions, sharply carves out the 'jealousy' and 'admiration' that lurk in everyone's hearts.

2. Saaya Minase × Chisa Hirose embody a contrasting sisterly acting battle

Saaya Minase and Chisa Hirose play the sisters vying for the protagonist's role. Pay attention to the delicate changes in their expressions as their positions reverse—from 'shadow' to 'light,' and from 'light' to 'shadow.'

3. The darkness of 'unconscious discrimination'—a family secret everywhere

Not out of malice, but an unconscious bias in affection. This work depicts an ordinary family scene, not a special one, that can be found anywhere. The 'reversal' awaiting at the end poses a poignant question to the viewer.

## Main Cast

Saaya Minase from 'Good Child, Bad Child'

## Saaya Minase | Role: Shiori Mihara

An older sister, a third-year high school student, who has always been treated like an 'invisible child' within her family. Although she tries to change her plain and inconspicuous self, she gradually transforms like her younger sister after seizing an 'opportunity' to reverse roles.

## Chisa Hirose | Role: Airi Mihara

A younger sister, loved by everyone and the 'protagonist' of the family. Unaware that her adorable appearance and friendly personality were encroaching on her sister's life, she faces her sister's transformation.

Chisa Hirose from 'Good Child, Bad Child'

Mie Ota from 'Good Child, Bad Child'

## Mie Ota | Role: Ayako Mihara

The mother of the sisters. Unconsciously prioritizing Airi, she is the bearer of the family's distortion.

## Ryoma Tanizawa | Role: Tadashi Mihara

The father of the sisters. He has overlooked the quiet spread of discrimination within the family.

Ryoma Tanizawa from 'Good Child, Bad Child'

## Work Overview

Title: 『Good Child, Bad Child』
Genre: Vertical short drama / Family human suspense
Episodes: All 12 episodes
Production Year: 2026
Director: Ryo Araki
Screenwriter: Maika
Copyright: ©︎GOKKO

## Vertical Short Drama App POPCORN

Vertical short drama app 'POPCORN'

'Emotion for your spare moments.' Vertical short drama app 'POPCORN'

With the concept of 'Emotion for your spare moments,' it is a platform that delivers 'dense entertainment' by emerging and talented creators. Each episode is about 1.5 to 3 minutes long, with the first few episodes available for free viewing, and subsequent episodes released on a pay-per-view basis. GOKKO leverages its unique know-how, which has garnered a response across generations, to develop works where creators' individuality shines, regardless of genre, including romance, immoral, youth, and comedy.

Download the app here

https://popcorn-drama.go.link?adj_t=1sfy5zhz

Specifications: iOS version, Android version
Price: Free download *In-app purchases available
Planned operating environment: iOS17 or later, Android12 or later

Download and watch the app

## About GOKKO Inc.

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