I don't know if anyone wanted to play a game as idle as this one, but apparently I enjoyed it very much. The illustrations of the frog going on fantastic travels around Japan are so gorgeous. It seems confusing and a bit tidious at first, but it's actually fun. You don't do much, but it gives you fulfilling reward every time the frog comes home. I just love it.
You don't do much actually, it's like waiting for someone to come home. The frog will give you souvenirs or money (leaf) as a gift. And you have to prepare their travel equipment, bc they would go on another trip.
Usually i open the app after i woke up in the morning, or during break time to harvest money.