Wow never thought I'd see a Charly Bliss song referenced in a Japanese Yuri manga. Not because indie/alt rock isn't HUGE in Japan/east Asia in general (which it is) just because like what are the odds it would end up in an adorable music themed yuri? That's so fun.
A lot of American fans of indie rock listen to Japanese indie/math/punk/alt/whatever rock bands. So I'm surprised by how shocked people are by these music choices. Like ofc it would go both ways and little indie kids in Japan are keeping up with American bands.
Also I highly recommend Charly Bliss's Soft Serve EP and their 2017 LP Guppy. In my opinion they kinda lost their spark after that.