As I'm "writing" this post at the I do the J-Core one, I come to realise that my soundcloud feed has a lot more chill in it than i thought. I blame all the future funk producers for sharing too much
You can download the whole album on his bandcamp for free, but also pay a little to support him if you want to. This basically are a lot of beats he made mixed together with various Idolm@ster vocals, no Mayu I'm afraid, but all in all it sounds very nice with the whole hip-hop theme.
I think this is the first time I encountered the genre of Lo-Fi... well, atleast the first time I saw a track labeled that way. Anyways, as this is the thread for chill, take a lot of it: