Yeah, I am aware of them, been following them since they released Tengaku. Very interesting concept of fusion between modern and traditional Japanese culture.if you want japanese pop/rock,
try to search wagakki band on youtube
their most popular one is senbon sakura but i suggest you to try their other songs as well..
its really good, the melody, the beat, the song itself and the music videos..almost perfect.. i really hope that they will perform on Olympics 2020 at Tokyo