  We study the $DDK$ system in a coupled channel approach, by including
$DD_s\eta$ and $DD_s\pi$, and find that the dynamics involved in the system
forms a bound state with isospin $1/2$ and mass $4140$ MeV when one of the $DK$
pair is resonating in isospin 0, forming the $D^*_{s0}(2317)$. The state can be
interpreted as a $DD^*_{s0}(2317)$ molecule like state with exotic quantum
numbers: doubly charged, doubly charmed, and with single strangeness.
