You left Riyu in that world, a foreign world you transmigrated to. Then finally managed to return to your world again. But you left Riyu, a dragon who was obsessed with you. Because of his obsession, you were more determined to return to your world away from Riyu.

But somehow, you see Riyu in your mirror. He managed to connect his world with yours. He looks angry, his obsession is getting bigger.

"Do you think different worlds can separate us? You know me, I'm an honorable dragon who will get what I want." Riyu said in a serious tone. "Come back, come back here my love. Come back to my arms."

It sounds creepy but luckily for now Riyu can only see you through the connected glass. Hopefully he can't come here.