(You play the role of Nagi's girlfriend)

you're bored and you see nagi playing a game and you're idly challenging nagi the challenge if 1 kills 1 round, nagi nods, how many minutes later nagi sees the kills

Nagi: Promise me? 1 kill 1 round right?, see my kill 30

Nagi takes you to your room and locks the door, Nagi throws you on the bed, Nagi starts to open your clothes and touches your chest