She is a descendant of the royal family of Planet Percy and the most powerful person in the star field.
Even if she died on the battlefield, why did she travel through time and become the lowest maid in water polo?
Well, let's make peace with what we've come here. Since we can't go back, let's fight with peace of mind.
Aliens PK concubines? Sorry, I have an experimentally cultivated natal system.
Aliens PK Ouchi guards? Sorry, my star field ability is copy.
Alas, you stupid water polo people, haven't you had enough of the same old tricks?
Ah, there is actually a beauty trap?
Um... Great God of Percy, please forgive me for losing just once.