It's a confirmed theory!

Harum in Chapter 155 pointed out that his seen Shin somewhere, and where did Haruma grow up? The Al-Kamar. And now the recent Chapter confirms that Shin DID IN FACT grow up in an Orphanage, look at the 2nd slide.

Now, mind you, there is zero Intel that there is another Orphanage than Al-Kamar, so the likelihood is actually massive.

LETS GOOO!