If you've never read Harada please do not start with this one.
Harada's art is great, it's simple but also really cute, just search her name on google and you'll see if her art fits your tastes, but personally I really like the style.
If you've never read Harada please just start with yatamomo or color recipe or even yoru to asa no uta, please just do not start with this. And also if you are very sensitive to pedophilia or rape then please don't.
It's a one shot so not much development, but I like how the MC took a different turn