KukkoroDays Walkthrough (qureate)

My Ex Sister In Law

This is a walkthrough for the English version of the KukkoroDays knight girl visual novel by qureate and iMel Inc, available for download on Nutaku, Mangagamer, Denpasoft, or Steam (All-ages). With this guide you’ll be able to navigate through the choices that this game provides.

KukkoroDays has 1 main heroine (Cattleya) and 3 different endings. The choices will decide which endings you’ll be able to get.

You’ll need just 1 save slot, and you’ll also unlock all CGs as you go.


  • If you use the Steam edition, then this guide assumes you have the free downloadable KukkoroDays R18 patch installed. Though it should also work without.

End #1 (Living together)

  • Start (And enter name)
  • Try to help her myself.
  • Dont pry.
  • Does she have a chance against me?
  • Look in the bag whether she likes it or not.
  • Protect Cattleya.
  • Do your best to get it yourself.
  • Save Slot 1
  • You dont want to leave Cattleya.

End #2 (Cattleya’s home)

  • Load Slot 1
  • She should follow through with her duty as a knight.

Bad end (No CGs)

  • Load Slot 1
  • You can’t make a decision…

Did you like KukkoroDays by qureate? Be sure to check out the other qureate games over at Nutaku.