The second Futakoi game from Media Works, this new love sim / adventure title is set on a deserted island and has you thrown into a quest for survival on this island during the middle of summer. Joining you are six pairs of twins who seem to have an affinity for skimpy, two piece bathing suits. The new Free Character Costume System (FCCS) allows you to dress the 12 girls up in clothes of your liking (not limited to bathing suits) and send them out on expeditions throughout the island.

The Twin View System has you converse with the twin pairs via split screen -- based on your responses, the balance of the split screen will change giving an advantage to one twin. When heading off on expeditions, you get to pick one pair of twins to accompany you. Your goal in these parts is to find new items and new spots. The places you can access are dependent on the twins that are with you at the time.

Gameplay takes place on a day-to-day basis as you work from your rising time in the morning until bed time at night. You start your day with a morning meeting. This is followed by the start of the island expedition. The day ends with the night meeting followed by the handing out of presents.

When heading off on expeditions, you get to pick one pair of twins to accompany you. Your goal in these parts is to find new items and new spots. The places you can access are dependent on the twins that are with you at the time. You can also expect to uncover events along the way.