my younger sister bcos she was & still is heavily into JPop even way before me
except she's more in depth like she watched Japanese dodramas , comedy shows , animes in addition of listening to JPop music
she's a JPop nut
for me I'm just scratching the surface of things in that I do listen to JPop music except some acts she doesn't like/listen but I do & vice versa
& I like watching HEYx3 too , it cracks me up big time