Manga im looking for

Tall about pedophilia...

Talk*

They r all at right age & I've found the 1st 2
p to jk
The other
My boyfriend in orange

The other 1
In beginning the girl finds a kitten & brings it to the novelists garden bk garden thinking it was abandoned
They make a deal
As long as she visits regularly & takes care of the kitten shes allowed to keep it there

Found it
Its called
Kore wa Koi no Hanashi
The summary is
After recently moving into his grandmother's house in the countryside, Yukio is bored with everything despite his success as a novelist. That is, until one day, when a young girl with a stray cat appears at his doorstep. A girl with a very tragic look in her eyes...

"high school girl & a novelist in his 30s" this dosent really seem "right age" but ok

http://www.mangago.zone/read-manga/fire_in_his_fingertips/

Found it
Its called
Kore wa Koi no Hanashi
The summary is
After recently moving into his grandmother's house in the countryside, Yukio is bored with everything despite his success as a novelist. That is, until one day, when a young girl with a stray cat appears at his doorstep. A girl with a very tragic look in her eyes...