I had the shiroi tonkotsu and a dessert.
The decor was visually interesting but the red square chairs were heavy. Quick side note: Considering the color scheme is red and white, why are the two color-themed ramens kuroi (black) and shiroi (white)? They could develop a tantanmen or a spicy ramen and call it "akai" (red) lol
The service was fine and prompt with seating, placing the order, refilling my drinks and clearing the table. In my opinion, they could learn how to explain/promote the menu items better.
The shiroi tonkotsu was fine, nothing to rant about, nothing to rave about. I liked the generous amount of bean sprouts you add for $1. I did not like the kikurage mushrooms being cold. I had to press/drown them in the broth in order to heat them up.
What I was most impressed with was the dessert. It was a yellow cake with a layer of pear fruit and thick cream dolloped on top. It was surrounded by a liquor-based(?) sauce and dressed with berries and morsels of chocolate. It was delicious and I find it odd that such a fancy dessert is served in a casual restaurant setting. My taste buds are not complaining as this was the star of the meal.
I might come back to try the izakaya side of the menu.