If you are using super capacitors and superconducting wire (like you are in the simulation) then yes, it does seem kind of weird. But if you could build a system such as this then I would expect it to be correct. 

I would do a transient simulation, and watch how the capacitors charge at that frequency where the hill is. 

The last thing would be to put in actual parasitics, put in some inductance for wire (most traces on a PCB add ~10 nH per inch). Capacitors will also have a few nH of [ESL][1] and some [ESR][2] depending on the type. You can select an equivalent if you right-click on the capacitor. 

  [1]: https://en.wikipedia.org/wiki/Equivalent_series_inductance
  [2]: https://en.wikipedia.org/wiki/Equivalent_series_resistance