Didn't really understood this one well.
Did the MC asked for keeping the two child cards ?
Page 8 and 9 are confusing... Why did the opposite party gave one parent card ? Shouldn't the MC's side already have all 7 cards ? And page 9, she said "two of the cards that pass" did they have more ? And "if someone has to go, let me replace feifei". But aren't they both excluded ?
Sorry, English isn't my first language (and I always forgot that this manga is red left to right) so sometime it's confusing...