The manga 'Codename: Sailor V'. It came out before Sailor Moon.
Minako has been superheroing longer than the others. At least a year.
She has been forced to kill her boyfriend once. Turned out he was a memeber of the Dark Kingdom
She's also under a curse. I am definitley misremembering this: 'Even though you are the Senshi of Love, your love will always be hopeless.'
It has also been implied that she has all her memories from the Moon Kingdom.
She has reasons for being grim. In the anime, her flaky behavior has been theorized as making up for lost fun by fans.
--------------------
Tom Mathews aka Disruptor
Minako has been superheroing longer than the others. At least a year.
She has been forced to kill her boyfriend once. Turned out he was a memeber of the Dark Kingdom
She's also under a curse. I am definitley misremembering this: 'Even though you are the Senshi of Love, your love will always be hopeless.'
It has also been implied that she has all her memories from the Moon Kingdom.
She has reasons for being grim. In the anime, her flaky behavior has been theorized as making up for lost fun by fans.
--------------------
Tom Mathews aka Disruptor