After her son and Gary went to school, Jon's mom decided to make wishes more interesting and useful. She goes, "I wish that Gary's changes during the transformation and female form period will be governed by the following 10 rules that I am about to say.
- The physical changes will happen to accommodate the attributes that Jon finds attractive or desires or finds helpful in the girls encountered throughout his day.
- To gain a particular attribute, at least one girl or woman with the same attribute must possess Gary, and she cannot escape his body until Gary is back to his original form.
- When someone possess Gary, Gary will also gain the most feminine trait of that girl, which can lead to a mental or behavioral change, and no-one will notice the disappeared girl during the possession period.
- Gary will always be in control of his body and the girls will leave his body as soon as Gary is back to original form, appearing in suitable places with no memories of the possession period.
- Gary will never realize when someone possess him, and he can only feel and see the changes happening to him.
- There will be a sufficient number of situations and scenarios throughout the first day of change to trigger and influence Jon's desires or thoughts to complete Gary's transformation.
- Jon and Gary will have separate classes during the first day of transformation, and they will meet again when the transformation is complete.
- As soon as the change is decided by the wish, Gary should be possessed by any girl with same attribute in his proximity without any question or restrain, willing walking into his body.
- If there are no girls nearby with the exact attribute desired, they could merge or split to gain that physical attribute before finally possessing Gary.
- People will not notice the wish manifestation as they take place magically.
This should be fun and exciting."