  Mirage mediation realized in the Kachru-Kallosh-Linde-Trivedi (KKLT) flux
compactification can naturally suppress the up-type Higgs soft mass at low
energy scales. As a result, compared to the conventional scenarios, the degree
of electroweak fine-tuning can be reduced further up to by a loop factor if the
Higgsinos are much lighter than the heavy Higgs doublet. Interestingly, this
feature holds even in high-scale supersymmetry as long as the gauge coupling
unification, which is required as a prerequisite for mirage mediation,
accommodates such light Higgsinos. Under the experimental constraints on the
observed Higgs boson, it turns out that mirage mediation can exhibit low
electroweak fine-tuning better than a few percent for stops between about 2 and
6 TeV, i.e., at the same level as in the weak scale supersymmetry, if the
Higgsinos are around or below a few hundred GeV.
