Broken paradise

I got this idea from first scene of jazz for two. The one with taehyun. This book is going to be focused on Seo doyoon cus I love him a lot.
In this taehyun and doyoon are step brothers from their father's side (it's related to his backstory) but they don't get along, as Taehyun though doesn't hate but also doesn't like Doyoon and doesn't meet him at all.
Doyoon's past is going to be a mixture of Uea's past from Bed friends and Fiat's past from Don't say no and Tharn type.
Trust me it's better then the description.