Phantom Siita Teams Up with ROUND1 for a Three-Month Entertainment Collaboration

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Phantom Siita's fandom is heading somewhere unusual: bowling alleys and karaoke rooms.

The "Phantom Siita × ROUND1" collaboration runs from 10:00 on September 14, 2026, through December 13, 2026.

Where the Collaboration Lives

Collaboration content is spread across several ROUND1 amusement categories, including bowling, karaoke, Spo-cha, billiards, and darts.

Collaboration Room Notes

The karaoke collaboration room is generally reservation-based, bookable through ROUND1's web site or app. Without a reservation, use may only be possible until the next reserved slot begins, and normal club discounts don't apply to these special rooms.

ROUND1 also prohibits commercial or resale-purpose purchasing or reservations for any collaboration goods, benefits, or rooms.

Why This Kind of Campaign Matters

Rather than limiting fan engagement to a single concert date or merchandise drop, this collaboration turns everyday leisure activities — a karaoke night, a round of bowling — into part of the fan experience, spread across three months.

What To Know

This type of campaign gives fans a social way to engage with an artist: meeting friends for karaoke, bowling or other activities while the collaboration is active rather than limiting participation to a single concert date.

Japan's entertainment complexes often combine karaoke, bowling, games and other activities under one roof. Artist and character collaborations turn those everyday leisure spaces into temporary fan destinations.

What Fans Are Saying

Original Japanese

Easy Japanese

「ファントムシータ×ROUND1」のコラボが、9月14日から12月13日まで行われます。カラオケやボウリングなどで楽しめます。