Houjou Urara no Renai Shousetsu Okakinasai!

Kei Nogami is a high school student who writes novels online for fun. But one day, his secret is discovered by the famous rich girl in school, Urara Houjou...! On top of that, she blackmails him into writing a romance novel for her own enjoyment... but in reality, Houjou is just a fan of his work!? And things continue to get complicated because Houjou can't be honest with what she says, which causes misunderstandings...?

(Source: Kadokawa, translated)