Brief summary of Koharu's fourth memorial commu in deresute:

1) Koharu is getting ready for her first stage show! She asks P if she can take Hyou-kun on stage with her. P affectionately pats her on the head and ruffles her hair, but has to say no. Koharu has to become a princess idol by herself, and has to earn everyone's love by herself. She has to be the star of the show, not Hyou-kun. P takes care of Hyou-kun while Koharu goes on stage, and they watch Koharu's show together.

2) Koharu understands, and goes on stage. She is nervous and messes up a lot, but she's the soft, positive, bright Koharu that we know and love the entire time. She messes up a lot, but the show goes well.

3) P notes that sending Koharu on stage without Hyou-kun was a tough choice to make, but he realizes that he can't coddle and spoil Koharu forever. This is necessary for Koharu to grow and develop on her own.

4) Koharu returns from the show saying "I messed up a lot, but that was a lot of fun!" Then P princess carries her, and the commu ends.