An adorable new yakiniku grill place recently opened at Mansion 7, with a bizarre but attractive theme: the classroom. Grill Concept (Mansion 7, 244/7 Ratchada Soi 14, 02-275-1577. Open daily 11:30am-midnight) features not only the usual cuts of pork and beef imported from Japan and sleek little hot plates at every table, but also a schoolhouse décor with walls covered with large, deep green chalkboards, dangling strings of bright abacus beads and long wooden benches in pink and yellow. We hear that the dining zones are even identified as classroom sections. Stay tuned for the Open Door.