DBDR-002: 武藤綾香潛入了山梨縣山區土木工程工人長期居住的溫泉旅館！ 滿足那些精力充沛的土木工程工人，他們的勃起不會因為用他們引以為豪的技術折騰他們而消退，這很好嗎？

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?