"Himawari's Birthday" (ヒマワリの誕生日, Himawari no Tanjōbi) is episode 53 of the Boruto: Naruto Next Generations anime.
Urashiki Ōtsutsuki arrives at the moon, where he meets with Toneri Ōtsutsuki. Toneri is surprised when Urashiki mentions the clan's main branch, and that they witnessed Toneri's troubles, wondering why he still protects the planet. Urashiki is also aware of Toneri's intervention with Boruto. Toneri attacks, but Urashiki paralyses him with a chakra string, and utilises a powder to freeze Toneri in time for ten thousand years, as he isn't allowed to kill a clan member. Urashiki departs as Toneri ponders that Boruto isn't ready. In an interview, Naruto stresses the importance of teaching the current generation the history of how their current peace was achieved by the sacrifices made during the last war. He also offers advice for the genin who will be taking the Chūnin Exams.
Boruto's not excited about the exams, instead wanting to become a shinobi like Sasuke. Moegi hands her genin application papers for the exams. Katasuke requests that the genin are allowed to use scientific ninja tools on the exams. Naruto denies it, considering the exams should measure a genin's own strength. In the Ninjutsu Research Centre, Katasuke wonders about Naruto's decision, and is approached by a hooded figure. Boruto plays video games with Inojin and Shikadai, who disapprove of Boruto's cheating. Mitsuki and Sarada bring the application papers for Boruto, still uninterested in participating. Sarada manages to convince him by pointing out that passing the exams will be a way show everyone how strong he is. Boruto goes home to celebrate Himawari's birthday, and is surprised to find Naruto home. As the celebration starts, Naruto disappears, revealed to be a shadow clone. Boruto is furious that Naruto broke his promise. Hinata tries reasoning with Boruto, but he's sick of always hearing the same excuses. Boruto notices Naruto's old, battered up cloths, and tosses it out the window. Someone rings the bell, and believing it to be Naruto, Boruto opens the door prepared to punch, but is blocked by Sasuke. Boruto apologises and introduces himself. Sasuke asks Hinata if Naruto is there, and she informs him he's still at the office. Boruto is thrilled about meeting Sasuke.
- When Sasuke blocks Boruto's punch, he can be momentarily seen with his normal left eye instead of Rinnegan.
- Koji Kashin makes a cameo in this episode ambushing Katasuke, however it’s revealed later in the manga to have been co-working with Ao to put the scientist under the control of Kara.