Watching This Fantasy Anime And Then This Idol Showed Up!

 Kuku, An Idol Bunny Who Appeared In Slime Taoshite 300-nen Shiranai Uchi no Level Max ni Nattemashita (Season 1 Episode 10) She's A Bunny Idol From A Fantasy World Who Debuted With The Song "Thank You"

So, Episode 10 Is About Music, And A Ministrel (Meaning A Medival Singer) 

So, That's Great, Please Listen To It Here (This Is A Music Video From The Anime...)