Ron's health class is assigned to be "parents" to a bag of wheat flour, and Ron later discovers that his parents have adopted a baby Japanese girl named Hana, which now makes Ron an older brother. Meanwhile, Yori calls Team Possible to help her stop Monkey Fist from getting the keys to a weapon—and Kim has to deal with her jealousy towards Yori, who she suspects still has a crush on Ron, and having to break the ice to her that they're an Official Couple.
This episode contains examples of the following tropes.
- Big Brother Instinct: After spending most of the episode resentful of Hana, Ron's protective older brother instincts kick in when Monkey Fist threatens her.
- Call-Back:
- Ron's parents using the "this is our way of telling you" line.
- Ron tells Yori she can "show a little emotion sickness." To which Monkey Fist comments "So the drama."
- Cheaters Never Prosper: Ron goes through numerous bags of flour, but plans to trick Barkin by buying identical bags to make him think he's only lost one. Unfortunately for Ron, the bag he ultimately turns in to Mr. Barkin is actually a sack full of sugar—predictably, this gets Ron a failing grade for the project.
- Clingy Jealous Girl: Kim's jealousy of Yori returns, and believes the ninja has ulterior motives despite inviting them both to Japan (instead of just Ron) and taking the news about Ron dating Kim in stride. When the girls go on the mission together without Ron (who's been forced to stay behind in Middleton to babysit Hana by their parents), Yori assures the redheaded heroine that she really is fine with him and Kim dating, even going so far as to say that she feels Ron is Kim's "destiny."
- Continuity Nod: Apparently, Barkin hasn't forgotten the time when Ron barged into his house for relationship advice.
- Curb-Stomp Battle: Ron absolutely destroys the monkey ninjas when they attack him and Hana:
- Dramatic Drop: Ron drops his first bag of flour when his parents introduce him to his new baby sister, Hana.
- Epic Fail: Ron can't keep any sack of flour intact for the life of him, some of which are destroyed within mere seconds of receiving them. In fact, according to Kim's brothers (who're in the same health class as Ron), Ron ended up going through the local Smarty Mart's entire stock of flour to prevent Mr. Barkin from learning the truth. However, Ron still ends up failing the assignment—the "baby" he turns in at the end of the episode, dubbed "Sacky MCMXXXIIII" (1934), turns out to be filled with sugar instead of flour.
- Egg Sitting: Mr. Barkin assigns each of the students in his health class to take care of a sack of flour. One of the students continues treating it like a baby even after the assignment is over, earning her a weird look from Ron and Hana.
- Also a bit of Actor Allusion to Will Friedle (Ron's voice actor) as Batman in a similar situation.
- Failed a Spot Check: When Ron bought the bag that he presented as the flour bag he's supposed to watch over, he checked the brand and several other details that Mr. Barkin could have checked except that he failed to notice it's not a flour bag.
- Foreshadowing: Hana picking Monkey Fist up by his foot and hurling him into a mountain shows there's more to her than meets the eye. Add to that Sensei's cryptic line about her having "much to show the world".
- Insecure Love Interest: Kim becomes this because of Yori’s involvement and of course, before she finds out Ron is dating Kim, she shows signs of still having feelings for him. Unlike in Ill-Suited, where Kim initally neither confirmed, nor denied that they were dating when Professor Dementor refused to believe it, here she explicitly refers to Ron as “my boyfriend” in front of Yori, just to make sure she knows they are a couple now. She even refuses to let Ron go and help Yori alone in Japan even after she is informed about their relationship, leaving him behind to look after Hana.
- Mistaken for Granite: The statues in the blue shrine turn out to be the guardians of the blue key. Monkey Fist uses a Batman Gambit to get Team Possible to trigger and distract them while he absconds with the key.
- Mythology Gag: Greg Weisman wrote this episode, so naturally Kim and Ron end up fighting gargoyles, though none of them bare any particular resemblance to the ones from that show.
- Parental Neglect: Ron's parents don't tell him they're adopting a baby until he comes home and finds his room turned into a nursery for his new baby sister. Even worse, he ends up having to stay in the attic.
- Relationship Upgrade: Kim makes Ron tell Yori about how the two of them have gone from Just Friends to an Official Couple. Yori takes it rather wellnote , leaving Ron disappointed and Kim not completely convinced that Yori's actually okay with her and Ron dating.
- The Reveal: At the end of the episode, it's shown that Sensei was behind the Stoppable-family's adoption of Hana.
- Running Gag:
- The demises of the various sacks. By the time Ron turns his in, he's gone through almost two thousand.
- Monkey Fist letting one of his monkey ninjas drive, followed by their running into something and Monkey Fist saying, "That's what I get for letting the monkey drive."
- Shown Their Work: Ron correctly refers to the statues as "Grotesques" which is the proper name for the full bodied statues most people call "gargoyles".
- Stealth Pun: Ron's caring for a bag of flour as a project for his health class, and he gets a new baby sister whose name means "flower" in Japanese.
- Wham Shot: At the orphanage where the Stoppables adopted Hana, the manager is revealed to be Sensei.
- Would Hurt a Child: Monkey Fist is perfectly fine throwing Hana in the volcano along with Ron.
