In order to get "nutrients" efficiently, there is a method of ingesting sugar. Many life-prolonging agents contain sugar. For example, keep flower, one of the life-prolonging agents, has " sugars " organic acid " organic acid salts " and " preservatives ".

Carbonated water is added to conventional water for sterilization. As a nutrient, various experimental sugars from the world are collected by experimental members and mixed together, resulting in a flower potion. Prepare some of these flower potions and experiment. Then, find the sugar that is most effective for prolonging the life. That is the goal of this experiment.