If you give Gumi a computer, she will not know how to use it.
If she does not know how to use it, she will try to figure it out herself.
Then she will screw things up, and the system will malfunction.
Then she will ask Kaito for help.
Then Kaito will use ice cream to solve the problem.
Because Kaito loves ice cream.
Then the computer will die.
Because everyone knows you don't use ice cream to fix a computer.
Then Dell will get angry.
Because this is Dell's computer.
So then Gumi will cry in order to get her way.
And then Dell will give in.
And buy her a computer.
Then she will not know how to use it.