Sayakaboshi Elementary advertises its 'strange school rules' to rethink education

Sayakaboshi Elementary School opened in Saku City, Nagano in April 2024, combining personalised digital learning with applied behaviour analysis and criticising Japan's single-standard evaluation of children. A brand-new private school had to make families understand an education model that openly contradicts convention.

Don't soften what makes the school unusual - name its rules 'strange school rules' and advertise them, so a different philosophy reads as a deliberate choice.

Droga5 Tokyo helped create the school's identity and a transit campaign titled 'Strange School Rules' (変な校則). Hand-illustrated chalk-and-blackboard posters carried lines such as 'Sayakaboshi digresses during class', 'Teachers stop teaching' and 'There are no report cards', and ran for a week each at Karuizawa station in Nagano and Kasumigaseki station in Tokyo in late June and early July 2024.

The campaign made the school's philosophy the message itself and won the Gold Lotus in Print & Outdoor Craft at ADFEST 2025; the posters were also archived by D&AD. For a school only months old, it put a new model of education in front of commuting families and the Tokyo government district where policy is made.

Sayakaboshi Elementary School opened in Saku City, Nagano on 1 April 2024, welcoming 22 pupils in its first cohort. Run by the Nishikaruizawa Gakuen school corporation, it teaches with personalised digital learning and applied behaviour analysis, and argues that Japanese schooling measures children with a single ruler of grades and good behaviour.

Its message is 'changing the common sense of education' (教育のあたりまえを変えていく), and Droga5 Tokyo helped turn that into an advertising idea: the school named its unconventional rules 'Strange School Rules' and displayed them in transit ads. Copy included 'Sayakaboshi digresses during class' - digressions are welcomed as deeper learning - 'Teachers stop teaching', 'We don't give everyone the same homework' and 'There are no report cards'.

The posters ran for one week each at Karuizawa station, the gateway to Nagano for families from Tokyo, and at Kasumigaseki station in Tokyo's ministry district, chosen to question the status quo of education policy. Each design was hand-illustrated in chalk style and printed with layered white ink on dark green textured paper to recreate real chalk on a blackboard.

The work won the Gold Lotus in Print & Outdoor Craft at ADFEST 2025 and was archived by D&AD, giving a months-old private school international recognition and a distinctive voice in Japan's debate about how children should be measured.

Advertising the strangeness converts a parent's first objection into the pitch itself.

Every 'strange rule' carried a concrete educational argument - personalised homework, no single-ruler report cards - so provocation doubled as explanation.

The two stations aimed the message at the exact audiences that matter: commuting families choosing a school and the ministries that shape education policy.

The chalk-and-blackboard craft made a technology-driven new school feel rooted in the classroom, reconciling its two identities.

When your product contradicts the category's norms, advertise the contradiction itself: a rule that sounds strange is proof of a different philosophy, not a weakness.

For Sayakaboshi, the campaign defined its first year: a small new school announced its philosophy through award-winning public work rather than conventional prospectus advertising. The D&AD archive entry documents the printing process behind the chalk-effect posters, and the school's agency partnership with Droga5 Tokyo continued as an example of consultancies and creative agencies supporting a startup school's brand from concept to building design.