Sekai Sushi bar is a sushi-focused restaurant that gives Lisbon, Portugal a clear reason to appear on a dining shortlist. The draw is fish quality, rice craft and a tightly paced counter experience; at a casual value price point, it should be judged as a practical, value-minded stop with more character than a default booking. The best reason to book is precision, pacing and quiet focus: a clear use case is more valuable here than another vague promise of quality.