Nakamura-san, the Uninvited Gyaru, Vol. 4

It’s been six months since brash gyaru Nakamura invited herself into the apartment—and life—of timid otaku Akiyama. Things get even more exciting when after a tiring day of hunting for aliens, Akiyama finds himself with an unexpected surprise—sharing a hot bath with a naked Nakamura! Cohabitation is never easy when polar opposites are involved, but it gets even harder when Nakamura’s mom shows up! How will Akiyama explain himself now?