I don't care about my EP any more, because I've got to a point where there aren't really any rewards that I actually care about within an easily achievable range, so is there actually any point in wasting my focus on Toriumi Hinata, or should I just elixir her/wait for her to go away while hoping that a PeroFriend finds Sera Hoshizaki?

If it makes any difference I'm F2P.