When Nagisa, Akina, and Saki go shopping for their cherry blossom picnic, Nagisa sees Junta with her little brother Seita and greets him warmly. Saki, possessive of Nagi-chan, is completely disarmed by the adorable Seita, who considers her as an older sister to her.
It was then that Akina decides to invite Junta and Seita to her picnic. This means that Nagisa, who was originally going to leave the cooking to her cousin and sister, wants to cook something for Junta.
That something turns out to be a hamburger steak, which she knows he likes. But when even peeling an onion is a perplexing ordeal, it’s clear she needs a lot of help. Saki is happy to guide her, but when Nagi cuts her finger on her knife, Saki asks Nagi to let her cook.
That’s when Akina walks in, seeing Nagi sulking on the couch, and tells Saki to give her one more chance. Nagi was careless and made a mistake, but she says that her sister is not one to make mistakes, and in any case, mistakes are crucial to learning.
Nagi and Saki end up making a successful steak, and the next day the cherry trees are out in full bloom. Junta looks at the steak, but it’s a bit far away, so she prepares to eat something closer until Nagisa serves her.
When he says it’s delicious, Nagi is in Cloud Nine-gi. But then Akina gets drunk on beer and starts flirting with an innocent Junta. This angers Nagisa, and she runs off to buy some yakitori at the stalls.
Seita urges Junta to reconcile with Nagisa immediately, but when he comes to her and apologizes, she says it wasn’t her fault and keeps walking away. That’s when Seita grabs her hem and directs her attention to Junta sulking on the floor, and asks again with her childlike innocence if they can reconcile.
They do, and though Junta isn’t sure why Nagi got mad and apologizes for being dense, the fact that he thought of her so much makes her happy. Seita suggests that they hold hands, with the little pacifier being the conduit between Junta and Seita so they don’t blush more than the flowers.
