Beyond the Sea Tag Team Championship
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The Beyond the Sea Tag Team Championship is a professional wrestling tag team championship created and promoted by the Seadlinnng promotion. The inaugural champions were crowned on July 25, 2018, when Borderless (Rina Yamashita and Yoshiko) defeated Nanae Takahashi and Tsukasa Fujimoto.
Like most professional wrestling championships, the title is won as a result of a scripted match. There have been a total of 16 reigns and two vacancies shared among 15 teams and 20 wrestlers. The titles are currently held by Colorful Bouquet Toss (Unagi Sayaka and Honori Hana) who are in their first reign as a team and individually.
Title history
On July 25, 2018, Borderless (Rina Yamashita and Yoshiko) defeated Nanae Takahashi and Tsukasa Fujimoto to become the inaugural champions. On February 28, 2019, the current champions Arisa Nakajima and Ayame Sasamura vacated the title after Sasamura suffered a leg injury. On March 20, Nakajima alongside Sae defeated Himeka Arita and Miyuki Takase to win the vacant championship.
Reigns
As of April 18, 2026, there have been a total of 16 reigns shared between 15 teams composed of 17 individual champions and two vacancies. The inaugural championship team was Borderless (Rina Yamashita and Yoshiko). The team Las Fresa de Egoistas (Asuka and Makoto) has the most reigns at two times, while individually, Arisa Nakajima has the most reigns at four times. As a team, Asuka and Makoto has the longest reign at 546 days in their second reign as a team, while Nakajima and Sae has the shortest at 39 days. Nanae Takahashi is the oldest champion at 42 years old, while Asuka is the youngest at 22 years old.
Unagi Sayaka and Honori Hana are the current champions in their first reign as a team, as well as individually. They defeated Mio Shirai and Sumire Natsu on December 26, 2025, at SEAdLINNNG 2025 Final Battle!.
| No. | Overall reign number |
| Reign | Reign number for the specific team—reign numbers for the individuals are in parentheses, if different |
| Days | Number of days held |
| Defenses | Number of successful defenses |
| + | Current reign is changing daily |
| No. | Champion | Championship change | Reign statistics | Notes | Ref. | ||||
|---|---|---|---|---|---|---|---|---|---|
| Date | Event | Location | Reign | Days | Defenses | ||||
| 1 | Borderless (Rina Yamashita and Yoshiko) | July 25, 2018 | Summer Blast | Tokyo, Japan | 1 | 141 | 4 | Defeated Nanae Takahashi and Tsukasa Fujimoto to become the inaugural champions. | |
| 2 | ∀∀ Impact (Arisa Nakajima and Ayame Sasamura) | December 13, 2018 | Sparkling-d! | Tokyo, Japan | 1 | 77 | 1 | ||
| — | Vacated | February 28, 2019 | Shin-Kiba 10th Night | Tokyo, Japan | — | — | — | The championship was vacated after Ayame Sasamura had been sidelined with a leg injury. | |
| 3 | Arisa Nakajima and Sae | March 20, 2019 | Luckiest | Tokyo, Japan | 1 (2, 1) | 39 | 0 | Defeated Himeka Arita and Miyuki Takase to win the vacant championship. | |
| 4 | The Beginning (Himeka Arita and Miyuki Takase) | April 28, 2019 | The Last Arisa Nakajima Produce of Heisei Era | Tokyo, Japan | 1 | 61 | 1 | ||
| 5 | Hiroyo Matsumoto and Yoshiko | June 28, 2019 | Shin-Kiba 14th Night | Tokyo, Japan | 1 (1, 2) | 463 | 5 | ||
| 6 | Best Friends (Arisa Nakajima and Tsukasa Fujimoto) | October 3, 2020 | Yokohama Flash 2020! | Yokohama, Japan | 1 (3, 1) | 55 | 1 | ||
| 7 | Oninikanabō (Sareee and Yoshiko) | November 27, 2020 | Shin-Kiba Night | Tokyo, Japan | 1 (1, 3) | 56 | 1 | ||
| 8 | Arisa Nakajima and Nanae Takahashi | January 22, 2021 | Shin-Kiba Night | Tokyo, Japan | 1 (4, 1) | 124 | 1 | ||
| 9 | Las Fresa de Egoistas (Asuka and Makoto) | May 26, 2021 | Shin-Kiba Night | Tokyo, Japan | 1 | 119 | 1 | ||
| 10 | Hiroyo Matsumoto and Nanae Takahashi | September 22, 2021 | Seadlinnng | Tokyo, Japan | 1 (2, 2) | 98 | 0 | ||
| 11 | Las Fresa de Egoistas (Asuka and Makoto) | December 29, 2021 | Seadlinnng 2021 Final Battle | Tokyo, Japan | 2 | 546 | 4 | ||
| 12 | Little Twin Berries (Ayame Sasamura and Riko Kaiju) | June 28, 2023 | Seadlinnng Shinjuku Pumping! | Tokyo, Japan | 1 (2, 1) | 169 | 2 | ||
| — | Vacated | December 14, 2023 | — | — | — | — | — | Riko Kaiju relinquished her half of the titles upon her retirement from professional wrestling. | |
| 13 | Las Fresa de Egoistas (Makoto and Nagisa Nozaki) | March 15, 2024 | Shin-Kiba Series 2024 Vol. 2 | Tokyo, Japan | 1 (3, 1) | 161 | 1 | Defeated Veny and Maya Yukihi to win the vacant titles. | |
| 14 | Ayame Sasamura and Itsuki Aoki | August 23, 2024 | Seadlinnng 9th Anniversary: Arisa Nakajima Retirement | Tokyo, Japan | 1 (3, 1) | 364 | 3 | ||
| 15 | Mio Shirai and Sumire Natsu | August 22, 2025 | Seadlinnng 10th Anniversary | Tokyo, Japan | 1 (1, 1) | 126 | 3 | ||
| 16 | Colorful Bouquet Toss (Unagi Sayaka and Honori Hana) | December 26, 2025 | Seadlinnng 2025 Final Battle! | Tokyo, Japan | 1 (1, 1) | 113+ | 1 |
Combined reigns
By team
As of April 18, 2026.
| † | Indicates the current champion |
| Rank | Team | No. of reigns | Combined defenses | Combined days |
|---|---|---|---|---|
| 1 | Las Fresa de Egoistas (Asuka and Makoto) | 2 | 5 | 665 |
| 2 | Hiroyo Matsumoto and Yoshiko | 1 | 5 | 463 |
| 3 | Ayame Sasamura and Itsuki Aoki | 1 | 3 | 364 |
| 4 | Little Twin Berries (Ayame Sasamura and Riko Kaiju) | 1 | 2 | 169 |
| 5 | Las Fresa de Egoistas (Makoto and Nagisa Nozaki) | 1 | 1 | 161 |
| 6 | Borderless (Rina Yamashita and Yoshiko) | 1 | 4 | 141 |
| 7 | Mio Shirai and Sumire Natsu | 1 | 3 | 126 |
| 8 | Arisa Nakajima and Nanae Takahashi | 1 | 1 | 124 |
| 9 | Colorful Bouquet Toss † (Unagi Sayaka and Honori Hana) | 1 | 1 | 113+ |
| 10 | Hiroyo Matsumoto and Nanae Takahashi | 1 | 0 | 98 |
| 11 | ∀∀ Impact (Arisa Nakajima and Ayame Sasamura) | 1 | 1 | 77 |
| 12 | The Beginning (Himeka Arita and Miyuki Takase) | 1 | 1 | 61 |
| 13 | Oninikanabō (Sareee and Yoshiko) | 1 | 1 | 56 |
| 14 | Best Friends (Arisa Nakajima and Tsukasa Fujimoto) | 1 | 1 | 55 |
| 15 | Arisa Nakajima and Sae | 1 | 0 | 39 |
By wrestler
| † | Indicates the current champion |
| Rank | Wrestler | No. of reigns | Combined defenses | Combined days |
|---|---|---|---|---|
| 1 | Makoto | 3 | 6 | 826 |
| 2 | Hiroyo Matsumoto | 2 | 5 | 743 |
| 3 | Asuka | 2 | 5 | 665 |
| 4 | Yoshiko | 3 | 10 | 660 |
| 5 | Ayame Sasamura | 3 | 6 | 610 |
| 6 | Itsuki Aoki | 1 | 3 | 364 |
| 7 | Arisa Nakajima | 4 | 3 | 295 |
| 8 | Nanae Takahashi | 2 | 1 | 220 |
| 9 | Riko Kaiju | 1 | 2 | 169 |
| 10 | Nagisa Nozaki | 1 | 1 | 161 |
| 11 | Rina Yamashita | 1 | 4 | 141 |
| 12 | Mio Shirai | 1 | 3 | 126 |
| Sumire Natsu | 1 | 3 | 126 | |
| 14 | Unagi Sayaka † | 1 | 1 | 113+ |
| Honori Hana † | 1 | 1 | 113+ | |
| 16 | Himeka Arita | 1 | 1 | 61 |
| Miyuki Takase | 1 | 1 | 61 | |
| 18 | Sareee | 1 | 1 | 56 |
| 19 | Tsukasa Fujimoto | 1 | 1 | 55 |
| 20 | Sae | 1 | 0 | 39 |