Arknights: I'm Fighting Kal'tsit, Seriously?

You're a transmigrator. Good news: you've transmigrated to Terra, where the land is full of animal people. Great! As the Doctor of Rhodes Island, I will surely save this land from its suffering. And in my spare time, I can chat about things like the four donkey girlfriends and the number-one Vanilla ranking. What do you mean I'm Priestess's dog? I'm Ama-9, the predecessor of Ama-10, and, by blood relation, I'm Kal'tsit's older brother. And now, my designed mission is to help Priestess carry out the Originium Project? King against king, general against general. Priestess versus the Doctor, Hilda versus Amiya. So my mission is to go dig Kal'tsit out?