Like radioactive jewelry, sushi is more easily enjoyed when held at the end of two long sticks. Safely adorn taste buds with today’s Groupon: for $20, you get $40 worth of sushi, sake, and contemporary Japanese fare at Kansaku in Evanston. Yoon Jae Kim and Seung Joon Kim, the chefs who helm Kansaku’s kitchen, draw from 20 years of culinary experience and employ fresh fish delivered from overseas to build modern, architectural sushi rolls and Japanese entrees. Sleek, zen-inspired décor lures guests into the dining room, where they can sip lychee martinis ($10) or Kurosawa sake ($17 for a 300-mL bottle) as crisp and cool as a head of lettuce wearing aviator sunglasses. Ten-piece rolls of Fiesta sushi ($14) regale taste buds with cilantro and jalapeños, and Dynamite maki ($14) surprises them with an explosion of baked scallops, mushrooms, and eel sauce. Those looking for warmer seafood can dive into a teriyaki made with grilled Alaskan salmon ($18) or observe as a lobster helps its grandmother across the street.