While her sister and husband were on a trip together, Satsuki was tasked with looking after her nephew, Masaya. "Mom, you're such a worrier. I'm an adult now, so I don't really need you to come all the way here, Satsuki." Masaya's heart was racing inside as he looked up to Satsuki, whom he had admired since childhood. "Come on! Don't say that when I've come all this way." A passionate moment for the two of them began.