4. Natsuno Minami
Natsuno is probably my favorite female character in the game. She's so into Alien movies, that when she found the people in suits searc0hing around the school, and when she found the Scout Unit, (which she named BJ,) she immedietly crafted a whole narrative about what's going on in her head.
Natsuno's story revolves around searching for Sentinel No.17 for her friend BJ, which eventually becomes her Sentinel in the Final Battle. She traveled through time and saw all sectors. She helped Miura find a place to stay when he shifted to Sector 5. Her friendship with Yuki-chan is wholesome!
She thought she was the main character of an Alien conspiracy, hiding the alien BJ from the 'Men In Black' so he can retrieve his robot and save earth. Up until the climax of her story, Natsuno misunderstood everything going around her to fit that narrative.
What I love the most about Natsuno story is how she's innocent in her worldview. At the start of the game, I felt she was almost delusional. She never waits for an explanation because 'Don't worry, I've seen the movie.'
However, when encountering hard evidence, she managed to realize that "she" was one of the aliens that Project Ark created.
Natsuno's story is full of bombshells like that!
Her relationship with Miura is probably my favorite! Maybe because their original selves were a couple? Mostly because of how little their stories focused on romance, yet you can see the attraction in their Thinking segments!