Mixch and TOKYO IDOL FESTIVAL 2026 Co-Host Audition for Lead Role in Tatedora Drama Starring Watanabe Miho

DONUTS Inc. (Shibuya, Tokyo; CEO: Keisei Nishimura), developer and operator of the live streaming and video app 'Mixch,' has announced the launch of an audition exclusively for active female idols to secure a role in the vertical short drama series 'I Became Friends on LINE with My Husband's Mistress' (Original: Hatchi; Composition & Art: Universal Publishing / KADOKAWA, scheduled to premiere in early autumn 2026) on the 'Tatedora' app, in collaboration with 'TOKYO IDOL FESTIVAL 2026 supported by Nishitan Clinic' (abbreviated as TIF2026). Entries are currently being accepted until June 30, 2026.

'I Became Friends on LINE with My Husband's Mistress' (https://tated.tv/linetomodachi/) is a fresh take on a popular revenge drama based on the hit manga of the same name. Watanabe Miho will play the lead role of Hatchi, while Higashi Bukuro (Saraba Seishun no Hikari) will portray her husband, Tetsu.

The audition will determine one Grand Prix winner based on the total points from: (1) 'Mixch Points Evaluation'—points earned through live streams and video posts on the Mixch app—and (2) 'Video Like Evaluation'—the number of Likes received on the assigned performance video from viewers (listeners). Additionally, two runners-up (excluding the Grand Prix winner) will be selected based on the combined total of the above two evaluations plus (3) 'Acting Skill Evaluation,' where judges assess the performance in the submitted video.

The Grand Prix winner and two runners-up will be unveiled on July 31, 2026, during the Mixch Stage at TIF2026. The drama’s lead actress, Watanabe Miho, and co-star Higashi Bukuro (Saraba Seishun no Hikari) will join the stage to celebrate the winners and energize the audience.

Event Details Page: https://mixch.tv/p/cahu6566

About the Audition

Audition Name

TIF2026 × Tatedora 'I Became Friends on LINE with My Husband's Mistress' Casting Audition

Eligibility

Active female idols aged 18 or older as of June 30, 2026

* Participation in TIF2026 is not required to apply.

How to Apply

Register for the audition’s official LINE account via the URL below and follow the instructions to apply.

https://lin.ee/qNjYfoL

Schedule

◆ Application Period

Until June 30, 2026 (Tuesday)

◆ Evaluation Period

July 9, 2026 (Thursday) 12:00 – July 16, 2026 (Thursday) 21:59

◆ Results Announcement

Scheduled for July 17, 2026 (Friday)

◆ Winner Announcement Stage

July 31, 2026 (Friday) @ Mixch Stage within TIF2026

◆ Filming

Scheduled for 1–2 days in August

◆ Distribution Start

Scheduled for early autumn 2026

* Schedule is subject to change without prior notice.

Important Notes

- One Grand Prix winner and two runners-up are planned, but the number may vary depending on circumstances.

- Applicants are responsible for all travel and accommodation expenses related to the audition.

Event Details Page

https://mixch.tv/p/cahu6566

About 'TOKYO IDOL FESTIVAL 2026 supported by Nishitan Clinic'

Event Name: TOKYO IDOL FESTIVAL 2026 supported by Nishitan Clinic (TIF2026)

Dates: July 31 (Fri), August 1 (Sat), August 2 (Sun), 2026

Venue: Odaiba and Aomi area

Organizer: TOKYO IDOL PROJECT

Official Website: https://official.idolfes.com/s/tif2026/

About 'Tatedora'

'Tatedora' is a vertical short drama app focused on original series. Long-form content is divided into episodes of approximately two minutes each, making it ideal for convenient, on-the-go viewing via smartphones.

◆ Tatedora Overview

Title: Tatedora

Genre: Vertical short drama app

Distribution Format: Smartphone app (iOS, Android)

Copyright: © DONUTS Co. Ltd. All Rights Reserved.

Price: Free (with some in-app paid content)

App Icon

◇ Tatedora App Download

Available on both App Store and Google Play via the URL below. (Recommended for ages 12 and up)

https://app.adjust.com/1kh8d9uo

◇ Tatedora Official Website & SNS Accounts

Tatedora’s official social media channels share detailed information about released works, cast comment videos, behind-the-scenes photos, and more. Please follow the accounts and check out the latest posts.

Official Website: https://www.tated.tv/

Official X: https://x.com/tated_tv

Drama Official X: https://x.com/tated_drama

Official Instagram: https://www.instagram.com/tated.tv/

Official TikTok: https://www.tiktok.com/@tated.tv

Official YouTube: https://www.youtube.com/@tated_tv

Official LINE: https://lin.ee/1lHFnHh

Official Facebook: https://www.facebook.com/tated.tv/

About the Live Streaming & Video App 'Mixch'

Mixch is an app that enables communication through live streaming and video posting. Launched in December 2013, it has surpassed 18 million cumulative domestic users. The current monthly number of visitors exceeds 5 million. In July 2020, the service was rebranded from 'MixChannel' to 'Mixch'.

Official Website: https://mixch.tv (compatible with both PC and smartphones)

App Download URL: https://app.adjust.com/5ns21yf

About DONUTS Inc.

DONUTS Inc. operates web-based services centered on five main areas: cloud services ('JobCan'), gaming ('Tandoku no Tora'), video and live streaming ('Mixch'), healthcare ('CLIUS (Killas)'), and publishing media such as magazines 'Ray' and 'Zipper'. The company continues to challenge new ventures while maintaining a focus on creating services and content that will retain value 10 to 20 years into the future, leveraging its high equity ratio for sustainable growth.