Kosuke's obsessive quest to score points with a virtual girl pushes Natsuna's buttons and exposes a possessive side she just can't hide. So when his idea of a "fun night" is anything but frisky, she makes a move and stakes her claim with a passion no algorithm can match. Sparks may be flying at home, but their steamy summer stands to be smothered when Natsuna's caught in the crossfire of a new hire's rejected confession.