Wasn't familiar with them myself until I came across their recent Devilman offerings. Made in collaboration with Marmit, I've seen a total of five figures so far (three characters, two variants of both Devilman and Silene). I think this is the first Kaim sofubi ever produced, at least that I'm aware of, and it's just great the parts were carefully crafted to properly affix Silene. I really love the blend of retro soft vinyl with the exaggerated proportions and characteristics reminiscent of the original manga art style. Unfortunately it seems they're currently only offered up at events, but maybe with Marmit involved there might be a more widespread release in the future. All photos courtesy of @pogonatoys on Twitter.
