Hiii I need help to find a manga ! Bc manga go lost our lists, I can't find it bc I forgot...

Hiii I need help to find a manga !
Bc manga go lost our lists, I can't find it bc I forgot the name.

It's a thriller/ drama / romance? / Josei manga. It's completed. I don't remember exactly the plot bc I read it a long time ago

It's about a woman who came to live in a new town, she's looking out for her brother which hasn't sent news at all for a long time. In the new town she meets a guy and thinks his her brother. then we learn that her brother actually died a while ago so the guy she's been talking with became the potential murder??? There is also a police officer who tries to protect her etc ...

At the end of the story we learn that the guy is actually a victim of her brother, he was bullied or something and the brother actually died during an accident I think ( I'm not sure tho).

She and the guy fell in love and to live together they have to act like the guy (her lover) is her brother she was looking for .
The end

The plot is peculiar but I remember liking reading it and I kinda want to read it again

Also I have screenshots of 2 panels, I can send it to you if you're interested

<33