I see long haired, I clicked. I see (Yaoi) in title I scroll. I see notice from bloomingda...

The long hair men are twins

Ohhh, is this incest?

I am not sure.... Nothing much is there in the trailer while I was trying to TL this...
I saw Majjip's twitter post where author mentioned they are twins

I see, then we'll just have to wait to see then. And I read the prologue and this is a multiple story. All seems interesting. ヾ(☆▽☆)

Yup
The stories are indeed interesting