Except for Ryuuou, that is excellent by the way but I didn't read any LN lately.

The last books I read in japanese were mostly SF, the 2 volumes of 裏世界ピクニック that is a mix of the famous SF novel Roadside Picnic aka STALKER and japanese urban legends about 2 girls finding themselves exploring the "backside" a world filled with monstrosities and where every step can be your last, I really enjoyed what I read.

I also read 最後にして最初のアイドル, a compilation of SF short stories by a new writer, all the stories are extremely hard SF full of infodump, they go very far but it was pretty good for a newcomer. The first story literally started as a Love Live fanfiction about Nico pretty literally becoming the greatest idol in the universe.

But otherwise I've been lazy due to Rance and work being very busy recently though this isn't an excuse