【Important Announcement】Integration with Seahorses Mikawa Fan Club Renews Membership Method! 'Tatsuwo Club 2026-27 Season' Early Registration Starts on June 15 (Mon) for 370 Limited Members

Thank you for your continued support of Seahorses Mikawa.

This is an announcement from Tatsuwo, a talent of Seahorses Mikawa.

Announcement from Tatsuwo

I am Tatsuwo, the representative of Tatsuwo Club.

The theme color of Tatsuwo Club for the 2026-27 season is 'Top Gold'.

As a new era of 'B.LEAGUE PREMIER' opens, Tatsuwo Club also aims for even greater heights.

Gold is a color that conveys 'pride', 'excitement', and 'confidence'.

Being a member should be a source of pride for you. And we will deliver the ultimate Tatsuwo experience that can only be found here. Together, let's aim for the yet unseen peak!

Tatsuwo Club

Voices of 2025-26 Season Members

Membership Benefits

◆ Tatsuwo Reversible Jacket

A high-function reversible jacket that changes its expression drastically between the front and back, embodying duality, has finally been added to the Tatsuwo Club special goods. Wear the nylon side for a cool, crisp impression like Tatsuwo. Wear the fleece side for a warm, soft impression like Tatsuwo. It's just like Tatsuwo. No, this is Tatsuwo. Switch according to your mood and wear Tatsuwo every day.

【Size】 M (Length: 70 / Width: 61 / Sleeve Length: 88) L (Length: 72 / Width: 64 / Sleeve Length: 90) XL (Length: 74 / Width: 67 / Sleeve Length: 92) *Note: There may be discrepancies from the stated size due to the characteristics of the material and the production process. Please understand in advance.

◆ Love Hand

The Tatsuwo pose ('I love you' hand sign) has grown larger and is now in your hands! You can hold it up in the arena to show Tatsuwo and the players a huge amount of love, or you can display it in your room to receive a silent 'I love you' every time you return home. *Love is something that cannot be fully conveyed with words.

【Size】 W240mm × H320mm

◆ Lucky Board

If you display this in your room, Tatsuwo might just pull in happiness and good fortune for you. ← The effect may vary from person to person (your belief is necessary). Tatsuwo's figure drawn in gold is like the god of fortune...

【Size】 W100×H148mm

◆ Topki Spoon

A spoon that shines with luxurious gold. Do not underestimate it as just a utensil; this is a special spoon developed to scoop up 'happiness' and 'victory' in your life. If you use it at your daily table, your usual meals should taste even better. Enjoy Tatsuwo's special large fortune without leaving any behind with the 'Topki Spoon'!

【Size】 W38×H180mm

◆ PREMIUM TTW PEN

A premium ballpoint pen with a rich sense of weight that supports you at life's turning points, such as when you make a big purchase or fill out a marriage registration form. Tatsuwo will gently support your moment of decision. At life's milestones, be sure to use this one! *Note: Of course, it can also be used for everyday memos and work. Rather, please use it.

【Size】 Φ12×135mm

◆ Tatsuwo Club Membership Card

The design changes every season and is a pleasure to receive!

◆ Limited Content

Message from Tatsuwo 'Exchange Day Ki' Digital Birthday Card Tatsuwo News (Event, Media Appearance Information) Tatsuwo Club Original New Year's Card Member-Exclusive Goods Online Sales

Events

Exclusive Tatsuwo signing event and Tatsuwo sleepover photo session will be held.

Capacity 370 people

Membership Fee 11,111 yen (tax included)

Recruitment Period

● Early Registration for 'Tatsuwo Club Members' 2025-26 Season June 15 (Mon) 12:00 - June 21 (Sun) 23:59 *Note: The application site will be announced in the email magazine distributed at 20:00 on June 12 (Fri) to members of the 2025-26 season.

● General Registration July 1 (Wed) 12:00 - *Note: Application will be possible from the special site at the scheduled time. *Note: Registration will end as soon as the capacity is reached. Please understand in advance.

Announcement of Membership Method Change

In conjunction with the opening of the 2026-27 season 'B.PREMIER', the entire B League system will be significantly renewed, and the 'Tatsuwo Club', which has been operated individually so far, will be integrated with the official fan club of Seahorses Mikawa, 'MIKAWARIUM'.

For those who wish to join the 'Tatsuwo Club', please proceed with the following steps. Note that due to system reasons, you cannot join the 'Tatsuwo Club' alone. Please understand in advance.

【Membership Method】 ① Please join the official fan club of Seahorses Mikawa, 'MIKAWARIUM'. ② Please access the exclusive membership form for 'Tatsuwo Club'. *Note: You can also join as a free magazine member. *Note: If you have not joined the official fan club of Seahorses Mikawa, 'MIKAWARIUM', an error will be displayed.

MIKAWARIUM

Request to Members Considering Membership

In conjunction with the transition to the new 'B.LEAGUE Account' and fan club system, please register for a new 'B.LEAGUE Account'. Please register here Keyword: