無駄

Shikashi ningen nanzo wa kutte kuso shite neru sore igai no koto wa shosen subete muda na koto na n da yo. Wareware wa sono uchi no hitotsu no muda o sōzō suru mono ni suginHowever, when it comes to humanity, anything other than eating, shitting and sleeping is pointless. Here we just produce one of such pointless things.

seishun o muda ni suruto fritter away one's youth