It's not time travel, the heroine is Baji's daughter. The heroine grew up in Hydra, and her views may not be very positive.
This is the story of a girl who was deceived by Hydra. After escaping, she rescued her father and became her father's best friend.
Ps.1. There are two settings, and all plots are subject to the author's imagination.
2. The author lets himself go.
3. The heroine is very suave. Mainline Marvel, possibly branch DC.
4. Cp US team.