amaki teishan

"Mrs. Winter"

The Extra Stage Boss of Mrs. Estacion, and the only girl powerful enough to resist Oshiromi Reshino's Cupid Bow. She is the one who summoned Himeka into the dreamworld, and she will continue to do so until she is defeated.

Her theme music was used in Kawashiro Nitori's fan-made Post-EX stage for Mountain of Faith.