where each world has a soul mate bonding doll. They each hold a doll to control the movement of their soul mate

But, Liam doesn't accept that Liam got a pink doll, because Liam is after karin, Liam is looking for someone who holds a green doll. until he finds it. he found a man hold a green doll what he's looking for. looking around he saw that it was quiet and took out a knife before approaching the man and stabbing him

"..no one can get her except me.. so this doll is mine"