Seibu Shibuya and rival Tokyu Department Store team up for one September campaign, calling it their first and last
As Seibu Shibuya's 58-year history in the ward comes to a close, the department store is running a month-long joint campaign with longtime Shibuya rival Tokyu Department Store — badged, in the release's own words, as their first and last collaboration.

Sogo & Seibu said on 25 August that Seibu Shibuya will run a month-long joint promotion with Tokyu Department Store throughout September, an unusual pairing between two long-standing department stores in the same ward that the company frames as marking the close of Seibu Shibuya's 58-year history there.
In the release, the two chains describe each other not as "rivals" but as "partners who built Shibuya together," and will run three linked initiatives. From 20 to 23 September, the first 5,800 customers who spend at least ¥2,200 at participating counters will receive an original folding fan. Between 1 and 13 September, followers of both companies' X accounts who repost a campaign post go into a draw for one of ten sweets gift sets. On 4 September, Shibuya-based station Shibuya no Radio will air a special programme from 6pm to 6.55pm titled, in translation, "Thank you, Seibu Shibuya — a first and last collaboration special with Tokyu Department Store." Posters and digital signage carrying the joint campaign's key visual will appear at multiple locations around Shibuya, according to the release.
The pairing is notable mostly for what it is not: a merger, a tenant handover or any operational tie-up. Sogo & Seibu and Tokyu Department Store remain separate, competing operators. What the release does confirm is that Seibu Shibuya, an anchor of the ward's department-store landscape for close to six decades, is winding down a run the company itself now measures in the past tense, without giving a closing date. A joint campaign between two rival chains in the same shopping district is rare enough that the companies chose to badge it, in the radio special's own title, as "first and last" — a small, deliberately public marker of how Shibuya's department-store map is being redrawn as Seibu's presence there recedes.