DBDR-002: Pumasok si Ayaka Muto sa hot spring inn kung saan matagal nang nananatili ang mga civil engineering worker sa kabundukan ng Yamanashi Prefecture! Masarap bang masiyahan ang mga civil engineering workers na masigla kaya hindi humupa ang kanilang erections sa pamamagitan ng paghagis sa kanila sa kanilang mga ipinagmamalaki na pamamaraan

Ayaka Muto infiltrates a hot spring inn where civil engineering workers are staying for a long time in the mountains of Yamanashi Prefecture! Is it great to satisfy civil engineering workers who are so energetic that their erections do not subside by tossing them with their proud techniques?