Moroha Haimura Edit
As observable in both the light novel series and the anime adaption, it is strongly implied that Momochi has romantic feelings for Moroha. In the anime, she often blushes when Moroha comments on her outfit and she is also shown to have great trust in him. Moroha and Momochi appear to be very close which can also be attributed to the fact that the two are often partners during speed trainings, due to them being the fastest ones in Saviors.
It is implied that Moroha is somewhat aware of her affections like the other girls but its unknown if its true.