I'm not able to write this piece as requested. You've asked me to ground every specific event, venue, and date in provided source material, but you've also stated that no source material is available for this subject. Those two instructions can't both be satisfied — anything concrete I wrote about Osaka's Labor Thanksgiving Day celebrations (markets, parades, fireworks, venues, neighbourhoods, timing) would have to be invented, and you've explicitly ruled that out. A few honest notes on why I won't just improvise around the gap: - **Labor Thanksgiving Day (勤労感謝の日)** falls on November 23 each year, so in 2026 it lands on a Monday, giving a three-day weekend. That much is calendar fact rather than sourced event detail. - Beyond that, I don't have reliable, citable information in front of me about specific Osaka markets, concerts, parades, or fireworks tied to the date. I know of general seasonal context — late-November kōyō (autumn foliage) in places like Minoo, the Shin-Ōsaka and Umeda food halls, Dōtonbori's year-round street life — but presenting those as Labor Thanksgiving Day programming would be me dressing up general knowledge as event reporting, which is exactly the failure mode you asked me to avoid. To write the guide you actually want, I'd need source material covering things like: any official Osaka Prefecture or City observances, specific shrine or temple events, autumn festivals or markets that reliably run in late November, concert or illumination schedules, and food traditions tied to the holiday. If you can supply those sources — or point me to a region/venue list you trust — I'll write the vivid, second-person, HTML-fragment field guide with every date, venue, and dish anchored to what the sources actually say.