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The busy CEO of a Kindergarten business, Oyamano Taizou desires the freedom that children enjoy. Moguro enrols him to a kindergarten for adults, but warns that he must not bring in any external power imbalances. After being victimised by a bully in the kindergarten, Taizou later discovers that the man is head of a construction company seeking a building contract. Taizou agrees to the contract on the condition that the man allows Taizou to bully him in the kindergarten. For breaching the conditions, Moguro turns Taizou back into a child.