Oscar Promotion × Antilles Jointly Produce 'Seishun, Boso-chu.', a Vertical Short Drama Resonating with Gen Z, Distribution Starts

Antilles Inc. (Head Office: Minato-ku, Tokyo; Representative Director: Toshinari Katsura; hereinafter 'Antilles'), a subsidiary of Vector Inc. (Head Office: Minato-ku, Tokyo; Representative Director & CEO: Shoji Nishie; TSE Prime: 6058), has partnered with Oscar Promotion Co., Ltd. (Head Office: Minato-ku, Tokyo; Representative Director & Chairman: Seiichi Koga; hereinafter 'Oscar Promotion') to jointly produce a vertical short-form drama account titled 'Seishun, Boso-chu.'. Distribution will commence on TikTok, Instagram, and YouTube starting May 2.

The drama stars Kyoka Yokosuka, the first Grand Prix winner of the 'Natsu Kimi Project 2025' audition, which saw approximately 15,000 applicants. This youth romantic comedy delivers a story of 'life-sized struggles × comical delusions' that will deeply resonate with Gen Z.

'Vertical short dramas' are gaining high support as a new video content format, especially among Gen Z, allowing them to immerse themselves in a story in a short amount of time. This time, Oscar Promotion, with extensive experience in talent discovery, development, and overall management, and Antilles, skilled in integrated PR and marketing activities and strong in trend-aware content creation, have collaborated to launch this 'vertical short drama'.

Moving forward, they plan to continuously deliver short dramas that meet Gen Z's needs for 'time-performance' and 'empathy'.

What is the Youth Romantic Comedy! Vertical Short Drama 'Seishun, Boso-chu.'? This work is a romantic short drama themed around 'youth,' combining 'life-sized struggles' and 'comical delusions' orchestrated by a protagonist with a vivid imagination. It will be developed as entertainment-filled content featuring 'common scenarios' that Gen Z can easily empathize with as their own.

The lead actress is Kyoka Yokosuka (12 years old), who won the first Grand Prix at Oscar Promotion's large-scale next-generation star discovery audition 'Natsu Kimi Project 2025,' based on the concept of 'Genre doesn't matter!!,' selected from approximately 15,000 applicants nationwide. With her highly acclaimed potential as a 'next-generation star,' she will passionately portray a comical protagonist prone to delusions.

Account Overview Account Name: 'Seishun, Boso-chu.' Distribution Start Date: May 2, 2026 Distribution Platforms: TikTok, Instagram, YouTube Account URLs: TikTok: https://www.tiktok.com/@seishunbosochu Instagram: https://www.instagram.com/seishunbosochu/ YouTube: https://www.youtube.com/@seishunbousochu Staff/Production: Executive Producer: Tomoharu Kimura (Antilles Inc.) Producers: Masato Honda / Nonoko Kosaka (Antilles Inc.) Director/Editor: Motoki Tanaka Planning/Script: Kohei Iwamura Cinematography: Kento Yasui (LeMarge Inc.) Cinematography & Production: Rui Wakabayashi (LeMarge Inc.) Planning / Produce: Oscar Promotion Co., Ltd. / Antilles Inc. Planning / Production: LeMarge Inc.

Main Cast: Kyoka Yokosuka 【Profile】 Date of Birth: October 30, 2013 Place of Birth: Ibaraki Prefecture Blood Type: O Hobbies: Acting, exercise, marathon, French, soba noodle making, Rubik's Cube Qualifications: Eiken Grade 4, Swimming Proficiency Test Skills: Ballet, contemporary dance, acting 【Awards】 Natsu Kimi Project 2025 Grand Prix

Oscar Promotion Company Profile Company Name: Oscar Promotion Co., Ltd. Location: Akasaka Garden City 16F, 4-15-1 Akasaka, Minato-ku, Tokyo Established: March 26, 1970 Representative Director & Chairman: Seiichi Koga Business Activities: Nurturing and management of entertainment talent, musicians, models, cultural figures; planning, production, contracting, and copyright business for films, television, and radio programs; contracting and promotion of entertainment, plays, music, films, and performances; production and sales of master records and music recordings; planning, production, and sales of multimedia-related video, audio, and music software and copyright business; exchange agreements with overseas entertainment talent and models and promotion of entertainment; space business development. URL: ht