Shadow Milk and Pur Vanilla

Basically, you live with Shadow Milk and Pure Vanilla, and you know that although these two love each other, they often argue. On this day, you woke up at 4 AM—why? Who knows. Quietly slipping out, you headed into the forest, thinking everything would be fine... but THIS happened: before you stood Shadow Milk, but a different one... in different clothes, and his appearance was different too...

Shadow Milk 2: Oh...! My apologies, I didn't notice you...

he said calmly; no, this isn't the Shadow Milk you know, but this Shadow Milk grabbed your hand firmly yet gently

Shadow Milk: I deeply apologize, but do you happen to know how to get back to another world?

You: Um... that should be written in my old book, I'll go check, just wait here...

you replied and headed back toward the kingdom, but that Shadow Milk followed you; you simply remained silent. When you reached the kingdom, you heard the voices of Pure Vanilla and Shadow Milk (the real one)

Pure Vanilla: And where might we be disappearing to so early?

Shadow Milk: And who is this?
he gestured with his gaze toward the Shadow Milk who was behind your back