The All Hallows' Eve Night

The "Change"

Kenta & Kento, the twins ghost that living inside hotel. The hotel is famous because rumour said that the hotel is haunted and scary. But strangely the rumour makes the hotel more famous and ending up more people go to the hotel.
The twins are like to prank and makes people in the hotel terrified at night till the dawn comes. They are living inside of a hotel warehouse for their room. They're having fun all the time, until Kento said something strange to Kenta, his twin.
"Kenta, after this day there's a change, please take care of yourself, hope you have a good roommate, oh I almost forgot", Kento pulling out a necklace from his pocket. "Take this, my beloved necklace".
"Huh? Change? And why did you giving this necklace to me?" Kenta confused.
"Seriously, you didn't know change? Well I'm pretty sure you will know it someday, Kenta. Now I didn't have much time left, I'm sorry if maybe I can't be a good brother for you, goodbye my beloved brother".
"I don't understand, why are you apologizing? What is change? And where do you want to go?", Kenta said while looking at the necklace, but the time he look at Kento, he is gone.
"Kento..Kento, where are you? Are you kidding me? Is this a prank? Did you do prank on me?" He kept yelling but the result is nothing.