Uhhh
Are we forgetting something?
Although I guess it can be handwaved by saying only Vernois was created with the shard and the other figure wasn't, but still.
You ever been so excited buying figure of your waifu you don't even notice the cashier is literally your best friend you've known for years?
I guess all the questions have been answered, but what about that shared dream between Haruto and Seijirou with the kid in ch.39? No explanations for who or what caused it?