There are some threads on here about this in the past, so do some googling to get some specific answers. I know it is done and there is a path, but it is not necessarily the easiest. You effectively are signing a contract with the reserves, and then have to go for the NROTC scholarship later. If awarded, you then have to get released from the reserve contract to get onto the NROTC-MO contract. You have to continue all of your Reserve obligations until you get released from that contract. Which could get in the way with NROTC requirements. Plus if you are not awarded a NROTC scholarship, or cannot get the contract released. You stay in the reserves.
This is super wave top level info of a deep ocean subject. I recommend doing some serious personal research to make sure this path is right for you.