ボッチの俺がハーレムを頑張って作るまで (Associated Names)

In the modern age, it became difficult for families to produce male children. That began the practice of harems limited to 10 members. Kiriyama Yuuki, a young man, who became a loner due to several reasons, just spends his life peacefully. However, bit by bit, will he begin to build his harem just for a…