A stray Marisa-Reimu couple give birth to a baby Reimu and consider her the easiest little one in the world.
A Mister trying to relax in the park is annoyed by the discordant sound of little Reimu and her mother practicing their singing. Finding their cardboard house, he asks them to stop, but they insist that their song can really take it easy. Reimu has the little one show off her beautiful voice for Mister. Pissed off, Mister kicks over their house. Just then, Marisa arrives home. She tries to fight off Mister, but he kicks her away. Marisa yells to the petrified Reimus to run away.
Little Reimu starts to follow her mother, but she can't hop very fast, and she's perplexed by her parents yelling at her not to take it easy. Why shouldn't she take it easy, when her parents have always told her she's a very easy yukkuri who can really take it easy? Aren't yukkuris who don't take it easy uneasy yukkuris? She comes to a complete halt.
Frustrated by little Reimu's ignoring her, Mother Reimu comes back to punish her for not listening. As Father Marisa yells at her to stop, she gives little Reimu a body blow, calls her scum, rips the ribbon (and some of her hair) off her head, and rips off her flap-flaps. She only stops when Father Marisa runs her through with a stick, damaging her paste core and killing her. Father Marisa says, "It's all right, little one, Marisa will protect--" --and then Mister stomps on her in an explosion of bean paste.
Mister laughs with a very easy expression on his face. He has enjoyed watching all this, and to show his gratitude, he tells little Reimu that he'll kill her without tormenting her.
Little Reimu looks up and sees the sky falling.