Following a scholarship student who knocked on the gates of a prestigious school to win the "Tentacle-1 Grand Prix" where high school girls from all over Japan gather. (Tentacle-1 Grand Prix is a point-based competition where you compete to see how much you can make your opponent react by stimulating their body with your own modified tentacles.) In the usual classroom scene, the tentacles can be inserted at any time, and in the pre-tournament weakness overcoming training camp, she ascends to heaven with a sudden tentacle climax, and in the Tentacle-1 final match, she has involuntary incontinence due to tentacle techniques beyond her imagination. "I can endure it! I won't lose!" Furthermore, the sensitivity increases many times over with the injection of milky white fluid!!
