A working sumo stable wakes long before the city. Inside a plain training hall in Sumida Ward, the morning practice known as asageiko is where champions are forged, hour after disciplined hour, on a floor of packed clay. There is no audience to perform for and no commentary to soften the effort: only the raw, repetitive labour of the sport stripped back to its essence.

The session is built on relentless repetition of foundational movement. Wrestlers drive through shiko, the iconic high leg-stomp that grounds balance and lower-body power, alongside posture drills and wall-pushing exercises. Throughout the morning, deep matawari splits and stretching keep these powerful bodies remarkably supple. The youngest apprentices labour beside seasoned wrestlers, and the discipline of the hierarchy is visible in every corrected stance and every silent repetition.

Then the intensity rises. In butsukari-geiko, a wrestler hurls himself shoulder-first against a senior who absorbs and redirects the charge, again and again until the legs give way. Sparring bouts follow, bodies locked on the mawashi belt, feet churning the clay. Standing only steps away you feel the impact of the collisions, hear the heavy breathing, and catch the stablemaster's sharp correction cutting across the hall. This is sumo entirely unmediated, far from the spectacle of the tournament arena.

With the hardest sparring behind them, the wrestlers ease off and the mood in the hall softens. The morning closes with the moment most guests cherish most, commemorative photographs alongside the wrestlers. Tell us in advance which wrestler impressed you most, and we will do our best to arrange a greeting.