This eatery is located in a quiet complex, just steps away from an office park-dense area of Irvine. The diminutive gray interior is accented with wood slats, a vertical garden and plate-glass windows that overlook the gathering crowds waiting for your seat. Everyone is here for the deliciously concise menu, offering rice bowls, and of course, their signature noodles. Those three types of ramen arrive in a choice of shoyu or vegan broth made with sesame and miso. Specialties include the tonkotsu, which showcases a bowl of wonderfully flavorful pork bone broth so rich that it seems almost milky, stocked with thin, flat noodles made by the chefs. This is finished with slabs of char siu and perhaps a dollop of zesty chili-garlic sauce.