DBDR-002: 武藤绫香潜入了山梨县山区土木工程工人长期居住的温泉旅馆！ 满足那些精力充沛的土木工程工人，他们的勃起不会因为用他们引以为豪的技术折腾他们而消退，这很好吗？

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?