Basically she is a Ultimate Weapon that is used by the government to fight against a secret war that no one knows about sorta. She gets a boyfriend who looks to be about 27 years old and she looks 11 but is actually 14 or 15 and he is like 17 I guess, yeah whatever

When time comes for her to fly off and face battle she usually does a "it's embarrasing" routine and runs behind a house or someting and we see a light rocket into the sky...

Chise-chan

Stupid boyfriend-san, explaing that he's 27 years old.

The couple walking down the street. Chise is pregnant, he's married what will they do!

"Boyfriend-san" after being beaten over the head with a cheap bottle of saki by his wife.
Yup Yup, that's Saikano for you....
~klinky