Three days after Ruka spent the night, Kazuya shows some genuine personal growth by taking out the goddamn trash. Chizuru had the same idea, and their timing is so synced up he almost wallops her when he opens his door. When she brings up Ruka, he assures her nothing happened, but the fact is she did spend the night. Later, when Chizuru is reading lines, she can’t focus thanks to Ruka’s words that morning.
On top of wanting to clear up the misunderstanding, Kazuya learns from the app that Chizuru’s birthday is coming up. He wants to give her a gift that means something, and also to thank her for getting him his phone case—which as we know played a key factor in him declining Ruka’s advances. He knows he can’t ask Ruka or Mami for ideas, so on Chizuru’s birthday he books Sumi, the forgotten Rent-a-Girlfriend.
Sumi, as we know, overheard Kazuya yelling out his feelings to Chizuru in episode 1, but other than that and being at Chizuru’s performance, she’s been a ghost, which is a shame, because every time she gets the spotlight, I find myself wishing Kazuya would just open his eyes and make her his girlfriend. It’s painfully clear (to everyone but him) throughout their date that she likes him!
Not only that, while she’s quiet and shy (though very verbose via text), she’s also perhaps the most thoughtful, kind, and caring of the four girls. Despite having so much less screen time than the others (or maybe because of that) she just constantly gives off Best Girl vibes. And Kazuya notes that she’s really making progress as a rental girlfriend, which she no doubt attributes to his help.
Kazuya procrastinates to the very end of the date to ask Sumi what she thinks would make a good gift for Chizuru. And while Sumi momentarily seems gloomy being asked about another girl, she quickly gets over that and helps the boy who has helped her. In her distinctive, adorable style of communication of gestures, little noises, texts, and the occasional spoken word, she suggests various gift ideas, all of which Kazuya considers but feels none of them are quite the right fit.
Sumi seems to have a Eureka moment and takes Kazuya by the hand, out of the department store where their date took place, and onto the roof of another department store where a “Rent-a-Fighters” power rangers-style show is going on. When Kazuya hears the pink fighter talking he realizes it’s Chizuru, working her ass off at yet another job in order to make her dream to perform in front of her Gran come true.
Watching Chizuru in action and delivering rent-a-kicks and punches inspires Kazuya to a degree, as he decides to stop wallowing and power through his indecision. Before parting ways, Sumi also tells him that sentiment matters most when it comes to gifts; as long as it’s from the heart, any gift from him would make him happy. Sumi isn’t only speaking rhetorically, mind you, but Kazuya doesn’t pick up on the nuance of her text.
Even so, when Kazuya starts walking away, Sumi looks at the photos they took together, her eyes start to get glassy, and before Kazuya knows it Sumi has him by the sleeve. Having not thought this through, Sumi remains silent and blushing profusely for a good long time, but eventually asks Kazuya for his birthday. They part ways again, and Sumi immediately puts the date in her calendar—an opportunity for her to give him something from the heart. Her satisfied smile melted my already melted heart.
Chizuru comes home well after dark, on the phone with her Gran declining an offer of dinner as she’s just too wiped. She takes a shower, gets a text from her idol frenemy Chi, then goes out on her balcony and finds a bag with a “Happy Birthday” note from Kazuya, who slipped it there from his side.
It’s a heartfelt note, explaining why he’s giving her a gift and that it can alleviate fatigue, which is especially timely sentiment considering how tired Chizuru is in that moment. When she opens the box within the box and finds pickled plums, her first reaction is “…Why?” She then notices Kazuya’s postscript insisting nothing happened with Ruka, and she remembers how passionately he spoke to her about not giving up, and pops a plum in her mouth.
Now, if you’ve ever had a pickled plum (I highly recommend them) you know how powerful the flavor is. They’re sweet, salty, and above all oh so sour. It’s a flavor that brings a smile to Chizuru’s face, and it’s a good flavor to represent the complicated nature of her and Kazuya’s relationship. It’s not necessarily comfort food, but slight discomfort food, giving you the kick you need when you need it.
Poor adorable Sumi doesn’t stand a chance, does she? T_T