Let's Play (あそぼ, Asobo?) is the one-hundred-thirty-third chapter of The Promised Neverland manga.
Synopsis
Emma and Ray enter the mysterious Grace Field House only to be welcomed with bizarre events.
Plot
After they entered the entrance to the Seven Walls, Emma and Ray find themselves in front of Grace Field House. Ray noticed that the door where they came from disappeared.
After entering the house, Emma noticed that it was too quiet. Immediately after that, someone laughed and a mysterious black eyeball came tumbling down the stairs and landed in front of them.
It said to "come and play" and the two were shocked, as they went on guard, a door appeared below Emma and she fell. Ray failed to saved her, but he soon found out that her voice is now coming from the second floor.
The world started swirling in front of Ray. He looked upfront to see Isabella with a few small children.
"Isabella," hugged Ray but he soon pushed her away asking who she is. The kids, who are revealed to be Conny, Hao, and Ceddi started hugging his legs asking him to come and play.
Ray then mysteriously turned into his 5-year-old body and looked at his tiny hands in shock. "Isabella" calls out more children to come and play. Soon, more kids started coming in from different doors chanting the same thing: "Come play."
Small Ray looks up to find "Isabella" and the other children's heads turn into skulls. "Isabella" declares that they should play and the kids started chasing after Small Ray.
Meanwhile, Emma gets tired of opening every door to lead to the same corridor and started shooting one of the doors in order to find Ray and not get separated.
She kicked a hole through the door she shot at and went in. She finally found Ray running from the skull children around swirling stairs. The floor that Ray is running on started cracking and he fell, Emma also fell. As she falls, she noticed that every opened door contains the skull children asking to come play. The two then fell on top of stuffed animals.
Emma emerges from the stuffed animals and Ray asks if she was okay. Emma then asks why Ray is tiny, and Ray replied that he doesn't know. Ray went back to his original form and pointed at Emma that she too has become tiny.
The two came back to their original forms and suddenly, the stuffed animals started chanting the same thing "Come play."
Emma recognized one of the stuffed animals to be 
and started asking questions. It replies that they'll be at the same place, which is beyond the Seven Walls. It said to try and come look as a hatch door appeared.
The two looked down inside the hatch as it said that the Seven Walls are inside the place.
