Solved Anyone know what this rose is?

Hi all,

Appealing for knowledge if I may:

Just noticed this today; it cropped up near our fence. I've never grown roses as I don't like their thorns, and pollinators can't get to the nectar.

But please see picture, it seems very soft stemmed, and from underground. I'm wondering if it's some old rose from next doors garden (current owner doesn't care for gardening; being polite..) trying to shoot up 'elsewhere'.

The leaves connected to it are the strawberry type ones.

Any info appreciated, I'd like to keep it going somehow as it chose our garden.

 

Oh I should add, it's more vivid than that photo shows. A very deep red, and those other stems are not part of the mystery rose.

 

That looks like a Begonia to me not a Rose.

 

With @Sheal .

 

100% begonia.