Shibuya Girls International School Students Participate in Development of SB Innoventure's Voice SNS "day" — From Sticker Design to SNS Promotion
Key facts
- Shibuya Girls International School Students Participate in Development of SB Innoventure's Voice SNS "day" — From Sticker Design to SNS Promotion
- Students from Shibuya Girls International School collaborated with SB Innoventure on the development of the voice SNS app "day," gaining practical experience in product development and SNS marketing through sticker design and TikTok promotion. Note that "day" is scheduled to terminate service on May 31, 2026.
- Source: PR Times
- Date: April 30, 2026
Direct answer
Students from Shibuya Girls International School collaborated with SB Innoventure on the development of the voice SNS app "day," gaining practical experience in product development and SNS marketing through sticker design and TikTok promotion. Note that "day" is scheduled to terminate service on May 31, 2026.
- Citation
- Shibuya Girls International School Students Participate in Development of SB Innoventure's Voice SNS "day" — From Sticker Design to SNS Promotion (April 30, 2026), PR Times
- Source
- PR Times
- Date
- April 30, 2026
Students from Shibuya Girls International School collaborated with SB Innoventure on the development of the voice SNS app "day," gaining practical experience in product development and SNS marketing through sticker design and TikTok promotion. Note that "day" is scheduled to terminate service on May 31, 2026.
📋 Article Processing Timeline
- 📰 Published: April 30, 2026 at 19:00
- 🔍 Collected: April 30, 2026 at 10:31
- 🤖 AI Analyzed: April 30, 2026 at 19:31 (9h 0m after Collected)
Shibuya Girls International School (hereinafter referred to as "the School"), which teaches next-generation skills such as English conversation, video production, and SNS operation, conducted a vocational experience workshop in February 2026, with two students participating in a joint project with SB Innoventure Corp. (hereinafter referred to as "SB Innoventure"), provider of the voice SNS app "day".
Program Name: Voice SNS "day" Vocational Experience Workshop
Period: February 2026
Cooperating Company: SB Innoventure
Participating Students: Sayuki (2nd-year student), Rin (3rd-year student)
■ "Work" not "Class." Current High School Students Participate in App Product Development
① "How to Convey the Charm of 'day' to Our Peers?" — Challenging Sticker Planning and TikTok Video Production
The workshop's theme was "How to convey the charm of 'day' to our peers?" Sayuki and Rin, two students, took on the challenge of planning voice stickers that could be used within the "day" app.
Reflecting on their daily lives, such as excited moments during after-school chats or "oshi-katsu" (fandom activities), they selected words they would want to use for reactions. Based on familiar words they use everyday, such as "Meroroi" (charming), "Emo" (emotional), "Metsu" (destroy), and "Kawaiisugiyaro" (too cute), they made concrete proposals covering font selection, voice toneイメージ (image), and visual design.
For "Emo," they combined it with a retro cassette tape visual, and for "Kawaiisugiyaro," they drew original illustrations on the spot, showcasing sensibilities unique to current high school students.
Furthermore, they challenged themselves to produce TikTok videos to convey the appeal of "day" to their peers. The two students, who regularly post on SNS, created videos that leveraged their individual personalities.
▼Rin's video production
▼Sayuki's video production
② Presenting SNS Utilization Techniques to the Development Team. From "Users" to "Providers"
In the latter half of the workshop, the two students gave a presentation on SNS utilization techniques to SB Innoventure's development team.
They shared real know-how that only they, as daily SNS users, could provide, including optimizing posting times, catching up on trends, and dedication to video editing. They spoke about their experience of trial and error in the fast-paced world where "trends change in a week."
Re-framing SNS, which they usually "use," from the perspective of "providing" it — this experience was a significant learning opportunity that they couldn't have gained in a classroom.
③ "Things You Can't Learn in the Classroom." The Reason the School Emphasizes Vocational Experience
At the School, we value opportunities for students aspiring to be entrepreneurs and creators to experience real-world business while still enrolled. This workshop was not just a tour or a simple experience; it was realized as a program where students participated in the actual app product development process, consistently experiencing planning, production, and presentation.
Participating students Sayuki and Rin demonstrated the SNS marketing and video production skills they cultivated in their regular classes in a practical setting. The "day" development team highly praised them, saying, "We gained real sensibilities unique to high school students" and "We received many hints for thinking about the service."
The School will continue to actively create opportunities for practical learning through collaboration with companies, providing an environment where each student can grow while connected to society.
■ About Voice SNS "day"
"day" is a voice SNS app provided by SB Innoventure Corp. With a unique design that has no text posting function and requires "voice" for all posts, it offers a new form of communication that can convey nuances of words and the mood of the moment as they are. Reactions to friends' posts are also done by voice, and its ability to connect casually with close people has gained support mainly among the younger generation.
Download here: 【https://day.social/】
*Note: This service is scheduled to terminate on May 31, 2026.
Details of this initiative are also introduced in SoftBank News.
▶ Feeling like a "voice diary," recording the moment's vibe. How high school students are really enjoying the voice SNS "day" (https://www.softbank.jp/sbnews/entry/20260406_01)
■ About Shibuya Girls International School
Shibuya Girls International School is a full-time correspondence support school where students can systematically learn next-generation skills such as English conversation, video production, and SNS operation, while also obtaining a high school diploma. As an educational institution operated by a company, it leverages its network with companies and society to provide practical education.
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What are the key facts in this article?
Students from Shibuya Girls International School collaborated with SB Innoventure on the development of the voice SNS app "day," gaining practical experience in product development and SNS marketing through sticker design and TikTok promotion. Note that "day" is scheduled to terminate service on May 31, 2026.
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Students from Shibuya Girls International School collaborated with SB Innoventure on the development of the voice SNS app "day," gaining practical experience in product development and SNS marketing through sticker design and TikTok promotion. Note that "day" is scheduled to terminate service on May 31, 2026.
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PR Times: https://prtimes.jp/main/html/rd/p/000000061.000031838.html | April 30, 2026