>>11275678
So yeah, you are now in a love competition with the other two onis. Due to a combination of the magical pact's rules, and the fact that none of you want to upset or disappoint the prince (he's just too cute), none of you will openly antagonize the others in front of him; but this doesn't prevent you from messing with each other in different ways, such as intercepting messages or "creatively" interpreting the prince's orders. Physically speaking, you are significantly weaker than the other two, but this is counterbalanced by the other onis' character flaws: the blue oni is a stickler for rules and honor even when they would disadvantage her, while the red one... Well, she means well, and she likes to help people, but let's say that she's not the brightest cookie in the palace kitchen's jar.
The situation will naturally devolve into basically an erotic comedy where you will compete for the prince's affections without him noticing the actual "war", even when they involve you throwing an entire statue at the other. Further complicating things are the prince's reluctance to partake in "lewd stuff" due to her shyness; and the fact that he's still technically your master through the magical pact, and so he can still order you three around... Sometimes by accident, by telling you something that the magic will interpret as an "order" and force you to act accordingly.

Who knows how's gonna end? It's not unusual for a prince to take a yokai bodyguard as a concubine, but choosing a yokai as a first wife is rarely heard of. Will you be the one to properly marry him? If he ends up marrying someone else, will you still try to be his mistress? Maybe he'll end up keeping you as a sex slave... for his wife. Or maybe you'll try to go for the harem ending?

>I wish that giga-dicked futas existed, and frequently competed against each other for dominance.