{"type":"firestarter.listing","listing":{"id":"lst_HOHOBGeP","product_name":"Yu Kurosaki Senko Ei SG2  Bunka","category":"Bunka Knife","description":"Overview\nThe Yu Kurosaki Senko SG2 Ei Bunka 170mm blends Echizen blacksmithing heritage with a modern, performance-first profile. “Senko” means “flash,” a nod to the star-like tsuchime that scatters light across the blade. Paired with a polished kyomen surface, it glides through ingredients and helps reduce stiction on moist produce. The Ei geometry adds a slightly more pointed tip for precision detail while keeping the bunka’s flat-ish edge for superb push cuts and clean chopping.\nAt its core is powdered metallurgy R2/SG2 stainless hardened to about 63 HRC. Expect long-lasting sharpness, confident bite on tomato skins and herbs, and easy day-to-day care thanks to stainless cladding. The octagonal handle and balanced 170mm blade make it a versatile daily driver for cooks who want Kurosaki’s signature style with serious cutting performance.\nCommon Questions\nQ: What makes the “Ei” version different?\nA: “Ei” denotes a slightly more pointed, agile tip. You get finer control for trimming, scoring, or detail work without losing the bunka’s flat edge for fast, straight chopping.\nQ: Is this bunka good for everyday use?\nA: Yes. At 170mm with a thin grind and 50/50 edge, it’s a do-most knife for vegetables, proteins without bone, and herbs. It excels at push cuts, slice cuts, and tap-chopping.\nQ: How should I care for SG2?\nA: Hand-wash, dry thoroughly, and store safely. Use a wooden or quality plastic board, avoid bones and frozen foods, and touch up on water stones when needed to keep the edge singing.\nSpecifications\n\n\nOrigin: Echizen, Fukui Prefecture, Japan\n\nBrand/Blacksmith: Yu Kurosaki\n\nLine: Senko Ei\n\nKnife Type: Bunka\n\nConstruction: San Mai (laminated)\n\nGrind: Double-edged (50/50)\n\nCore Steel: R2/SG2\n\nCladding: Stainless Steel\n\nFinish: Tsuchime (Senko “flash”) + Kyomen (mirror-like polish)\n\nHardness (HRC): 63\n\nBlade Length: 170mm \n\nBlade Height: 47mm\n\nSpine Thickness (Heel): 2.2mm\n\nSpine Thickness (Mid): 2.1mm\n\nHandle Material: Rosewood\n\nHandle Shape: Hachikaku (Octago","images":["https://cdn.shopify.com/s/files/1/0602/6720/0736/files/yu-kurosaki-senko-ei-sg2-bunka-170mm-01.jpg?v=1761301406","https://cdn.shopify.com/s/files/1/0602/6720/0736/files/yu-kurosaki-senko-ei-sg2-bunka-170mm-02.jpg?v=1761301406","https://cdn.shopify.com/s/files/1/0602/6720/0736/files/yu-kurosaki-senko-ei-sg2-bunka-170mm-03.jpg?v=1761301406"],"price":269,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:44:31.245Z"},"share_url":"https://firestarter.network/l/lst_HOHOBGeP","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_HOHOBGeP' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Yu Kurosaki Senko Ei SG2  Bunka' and a budget_max comfortably above $269.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}