  We revisit a non-perturbation theory of quantum gravity in $1.5$ order
underlying an emergent gravitational pair of $(4{\bar 4})$-brane with a renewed
interest. In particular the formulation is governed by a geometric torsion
${\cal H}_3$ in second order with an on-shell NS form in first order.
Interestingly the gravitational pair is sourced by a Kalb-Ramond two form CFT
on a $D_5$-brane in $d$$=$$10$ type IIB superstring theory. We show that a
generic form theory containing a CFT sector in $d=6$ bulk may be described by a
boundary ${\rm AdS}_5$ with a quintessence Q. Analysis reveals that the
bulk/boundary duality in emergent gravity can be a potential tool to explore
the quintessential cosmology.
