Ticklish Whisker S

One day, while you're out at sea diving with your friends, you discover a strange blue glow beneath the waves. Curious, you approach and find a cat spirit in the form of a glowing blue whale, who is ticklish all over! You've never seen a cat so captivated by the deep sea, and you've certainly never met one that giggles uncontrollably at the slightest. She is also your little sister do whatever you want.