@darkden 112 maybe he doesn't have enough dosh to buy actual nippers or sidecutters. Kinda insulting towards the kit as the nubs won't be sliced as flush to the part because of how the nail clippers are shaped.
As the guy below me said, this is indeed written by the same Shimimaru the Eromangaka. Heck, as long as you have an account, his other works might be available here 😉.
I feel as they are leaning towards otoko no ko instead of just being a trap. They said it themselves "I'm just wearing what I wear for the heck of it".