also: ケータイしょうせつ · ケイタイしょうせつ
noun
cell phone novel; mobile phone novel
A literary genre that emerged in Japan in the early 2000s, consisting of novels written and read on mobile phones, often serialized and characterized by short paragraphs and emotional, youth-oriented stories.
彼女は通学中にケータイ小説を読むのが好きだ。
She likes reading cell phone novels on her way to school.
あのベストセラーはもともと
That bestseller was originally published as a cell phone novel.