Pleasure, Amusement
noun, verbal noun, の adjective
Recreation and comfort are things you do for pleasure and amusement. So nice!
ごらく
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
娯楽小説を読むことの何が悪いって言うんですか？
What’s wrong with reading light novels?