Summary by Salem
Anon took away the father Marisa's hat and wear it. He then told the children that he's their father and he became weird (something grow under his feet/head) because of that uneasy Marisa's curse. The children then hurt their father with toothpick he gave them.
When Marisa is about to die, he returned the hat.
Later, mother Reimu came back and saw two little uneasy yukkuri. The man then returned, wearing KoMarisa's hat and attached KoReimu's ribbon to his shoulder. He told Reimu that those uneasy yukkuri cursed her children so they must be punished.