Sushi by Bou- Chelsea NYC @ Bosque Flowers & Coffee is a nine-seat sushi bar tucked inside Bosque Flowers & Coffee in Chelsea. It serves an omakase of Edomae-style aged fish, including tuna tartare and wagyu nigiri. The chef explains each dish over a one-hour session that starts at the reserved time, and guests who arrive early can wait at the bar. Seating is tight.