Kawaii pianos are, in my opinion, one of the worst made pianos ever. If you don't want to ruin yourself, avoid this piano like a plague. One of my past students used to practice on a Yamaha piano. He was still in his grade school but the mother, bought him a grand piano, a Kawaii, without my consultation. And about a month or two before a studio recital, I noticed his shoulders tightening up with his jaws all tensed up. He never did this until like 3 months previously. I tried to fix this problem again and again, but the same problem returned week after week. And during our conversation, he said that his mother had bought him a grand piano. I was very surprised. So I asked him if it was a Yamaha, and he said no, a Kawaii. Then I knew the cause of his tension. I was furious at his mother for not advising me before this major purchase. She was an eccentric mother and they quit soon after.
But yes, I know your feeling about the piano. From all of the Kawaii pianos I have played on, they all feel like the keys weigh a ton and stiff as a concrete. This piano will ruin you if you don't pick the right one.
I'm pretty sure that there are some decent Kawaii pianos out there but so far, I haven't played on one yet.