Nitrate

Watari-kun's ****** Is About to Collapse

  • TV-14
  • 2025
  • 1 season
  • Animation, Comedy

Naoto Watari lives solely for his little sister, Suzushiro, until his chaotic childhood friend, Satsuki, storms back into his life. Without uttering a single word, her very presence ignites buried memories and unravels his rigid routine. As tensions rise and secrets surface, Naoto’s devotion to Suzushiro clashes with unresolved pain, threatening to collapse his fragile world.

Episodes

26 episodes
  1. 1The Day Peace Began to Collapse

    24 minJul 5, 2025

    Watari Naoto and his sister Suzu try to live a normal life. His destructive childhood friend Satsuki returns.

  2. 2Small Lies

    24 minJul 12, 2025

    The plants in the garden are beginning to sprout. But so are the small lies that everybody employs.

  3. 3Worldly Desires, Begone

    24 minJul 19, 2025

    Ishihara-san has the image that Naoto is a perfect, kind, chaste saint. Can he kill all his desires, though?

  4. 4Showing and Being Seen

    24 minJul 26, 2025

    Everyone is going to the beach. Satsuki and Ishihara get bathing suits. What will Naoto say to them?

  5. 5Ideal Partner

    24 minAug 2, 2025

    On their walk, Naoto and Ishihara run into Fujioka, her "ex-boyfriend". What really happened between them?

  6. 6Confession

    24 minAug 9, 2025

    After overcoming multiple obstacles, Ishihara finally confesses her feelings to Naoto. What is his response?

  7. 7After School, Just Before Summer Break

    24 minAug 16, 2025

    Ishihara and Naoto go on a date at the zoo, albeit with Suzu in tow.

  8. 8A Cute Junior

    24 minAug 23, 2025

    Naoto has his first day on the job. Satsuki goes to her new job, but it's in the seedy part of town?!

  9. 9The Fireworks

    24 minAug 30, 2025

    After the fireworks, a violent storm forces Naoto, Ishihara-san, and Satsuki to spend the night together.

  10. 10A Relationship I Don't Want to Mess Up

    24 minSep 6, 2025

    Ishihara leaves in the morning, leaving much to be discussed. But Naoto is in the movies and misses 23 calls.

  11. 11Still a Child

    24 minSep 13, 2025

    Naoto meets Ishihara's mom who thinks Ishihara is still a child. Then Naoto knocks over a bag with condoms...

  12. 12Being Independent

    24 minSep 20, 2025

    Yukari's mom wants Naoto and Yukari to break up. But Naoto decides that he doesn't want to give anything up.

  13. 13Do You Really Love Her?

    24 minSep 27, 2025

    Naoto decides to talk to Ishihara-san's mother and his honesty disarms her. Meanwhile, Satsuki is moving away?

  14. 14Nao-kun Mk. II

    24 minOct 4, 2025

    Naoto meets Satsuki's family. Why did she have to come home so suddenly? Who's Nao-kun Mk 2?!

  15. 15What It Means to Love Someone

    24 minOct 11, 2025

    Satsuki's emotions are a mess. Trying to get rid of the bad feelings, she tells Naoto she loves him.

  16. 16A Contract for Sex

    24 minOct 18, 2025

    Ishihara-san broke up with Naoto?! And now Satsuki is offering to have sex with Naoto?!

  17. 17Answers for Satsuki and Ishihara-san

    24 minOct 25, 2025

    After a long time of soul searching, Naoto finally has an answer for both girls. Who is he going to pick?

  18. 18What They're Searching For

    24 minNov 1, 2025

    Naoto goes back to his old home to get the laptop, but can't find it. Instead he meets a woman named Rika.

  19. 19Seeing Things

    24 minNov 8, 2025

    Satsuki has fully disappeared. But on the school trip to Okinawa, Naoto keeps seeing glimpses of her. How?!

  20. 20Now's My Chance

    24 minNov 15, 2025

    Satsuki is leaving Okinawa this afternoon but she still won't meet Naoto. He has to figure out a way see her.

  21. 21Honest Feelings

    24 minNov 22, 2025

    Naoto has a date with Satsuki, but Makina wants to spend the day with him. Can he make it on time to Satsuki?

  22. 22The One I Need

    24 minNov 29, 2025

    Naoto Watari lives solely for his little sister, until his chaotic childhood friend storms back into his life.

  23. 23A Story from Another Time

    24 minDec 6, 2025

    Naoto finally manages to tell Satsuki how he really feels, and Satsuki's also ready to take the plunge.

  24. 24New Life

    24 minDec 13, 2025

    Abe tells Tokui that Satsuki might be pregnant! Tokui also finally reveals something about his past love.

  25. 25The Shape of a Family

    24 minDec 20, 2025

    Naoto and Satsuki attend Yayoi and Naozumi's wedding. Later they talk about the shape of family.

  26. 26One Last Thing to Make Sure Of

    24 minDec 27, 2025

    Naoto and Satsuki's summer together is about to end. Where will their individual paths take them?

Where to watch Watari-kun's ****** Is About to Collapse

Stream

Included with a subscription

Buy

Pay once, keep it in your library

Availability from JustWatch, via TMDB. Full listing for United States

Series cast

Yurie IgomaYukari Ishihara (voice)26 episodes
Megu UmezawaMakina Umezawa (voice)26 episodes
Yoshiki NakajimaShigenobu Tokui (voice)26 episodes
Naomi OhzoraTamayo Watari (voice)26 episodes
Shuichiro UmedaNaoto Watari (Young) (voice)26 episodes
Yumika YanoSatsuki Tachibana (Young) (voice)26 episodes
Hinaki YanoSuzushiro Watari (Young) (voice)26 episodes
Towa NishinaFemale Friend A / Daughter (voice)6 episodes
Takumo ItoMale Student A (voice)6 episodes
Shintaro KurokiMale Student B (voice)6 episodes
Mirano KanbeFemale Friend/Homeroom Teacher (voice)6 episodes
Kazuki KyanStudent C (voice)5 episodes
Ai IshikawaSon / Naoto's Mother (voice)2 episodes
Yoshimasa HosoyaSoichiro Fujioka (voice)2 episodes
Akira KunishigeFemale Friend C (voice)2 episodes
Shinya TakahashiMale Friend D (voice)2 episodes
Mitsuru SatoManager (voice)1 episode
Sara UrataFemale Friend D1 episode

More like thisShows TMDB viewers also watched