Matsuya's Official X Introduces Oi Ocha Koicha PREMIUM STRONG W and Another Drink in Late-Night 'Matsuya Nau' Post

At 10:27 p.m. on September 17, Matsuya’s official X account posted, opening with “Late-Night Matsuya Nau (╹◡╹),” writing, “Relax Jasmine Tea and Oi Ocha Koicha PREMIUM STRONG W are now available to drink at Matsuya~!!”

Two Items Added on September 15, at 140 Yen and 160 Yen

Both items mentioned in the post were added to the drink lineup at 9:33 a.m. on September 15. Relax Jasmine Tea is priced at 140 yen and Oi Ocha Koicha PREMIUM STRONG W at 160 yen, and both remain on sale. That same day, the previous Blended Tea (120 yen) was removed from the drink lineup, with the two new items taking its place.

The posted photo shows two bottles standing on a table at a Matsuya restaurant: a pale-colored bottle of “Relax JASMINE” jasmine tea, and a bottle marked “Koicha PREMIUM STRONG W” in gold foil lettering on a black label — the English notation “PREMIUM STRONG W” in the post text matches the wording on this package. In front of the bottles are a dish topped with cheese and egg served in a bowl bearing the MATSUYA logo, alongside a plate of fried food with tartar sauce, suggesting a late-night meal.

A Late-Night Post That Used ‘Matsuya Nau’ for a Product Announcement

This post was not copied from an official website announcement but was written directly by the person behind the account. The casual touches — the emoticon “(╹◡╹),” the elongated “~” at the end of words, and the “!!” at the close — are a style that has long been used on the official X account.

Posts titled “Matsuya Nau,” meanwhile, have previously been used as a lead-in for quizzes asking followers to guess a store’s location. This time, that same opening was used to introduce a drink instead.

Counting this post, the official X account has now published about these two items three times. The previous day, September 14, at 6:38 p.m., a post showing “Oi Ocha-kun” meeting Matsuya’s Macky was published, followed by a post at 10:00 a.m. on September 15 announcing the start of sales. This latest post at 10:27 p.m., roughly two and a half days later, once again calls out that the items are “now available to drink.”

Chance to Win an Oi Ocha-kun Plush Runs Through September 21

The sales-launch post at 10:00 a.m. on September 15 also announced a giveaway in which 10 winners chosen by lottery can receive an “Oi Ocha-kun” plush and other prizes for following and reposting the account. The entry deadline is Monday, September 21, 2026, and the campaign was still open at the time of this late-night post.