Playback is currently unavailable for S1 E1 · The Day Peace Began to Collapse. Episode details remain available below.
Watari-kun's ****** Is About to Collapse
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.
- Cast:
- Shuichiro Umeda, Yumika Yano, Yurie Igoma, Megu Umezawa
- Language:
- Japanese
- Country:
- Japan
- Network:
- Tokyo MX
Episode guide
Seasons
Season 1
Episodes
E01
Episode 1
★ 7.0The Day Peace Began to Collapse
2025-07-05 · 24mWatari Naoto and his sister Suzu try to live a normal life. His destructive childhood friend Satsuki returns.
Current episode
E02
Episode 2
★ 7.0Small Lies
2025-07-12 · 24mThe plants in the garden are beginning to sprout. But so are the small lies that everybody employs.
Watch progress · Not tracked
E03
Episode 3
★ 7.0Worldly Desires, Begone
2025-07-19 · 24mIshihara-san has the image that Naoto is a perfect, kind, chaste saint. Can he kill all his desires, though?
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E04
Episode 4
★ 7.0Showing and Being Seen
2025-07-26 · 24mEveryone is going to the beach. Satsuki and Ishihara get bathing suits. What will Naoto say to them?
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E05
Episode 5
★ 7.0Ideal Partner
2025-08-02 · 24mOn their walk, Naoto and Ishihara run into Fujioka, her "ex-boyfriend". What really happened between them?
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E06
Episode 6
★ 7.0Confession
2025-08-09 · 24mAfter overcoming multiple obstacles, Ishihara finally confesses her feelings to Naoto. What is his response?
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E07
Episode 7
★ 7.0After School, Just Before Summer Break
2025-08-16 · 24mIshihara and Naoto go on a date at the zoo, albeit with Suzu in tow.
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E08
Episode 8
★ 7.0A Cute Junior
2025-08-23 · 24mNaoto has his first day on the job. Satsuki goes to her new job, but it's in the seedy part of town?!
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E09
Episode 9
★ 7.0The Fireworks
2025-08-30 · 24mAfter the fireworks, a violent storm forces Naoto, Ishihara-san, and Satsuki to spend the night together.
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E10
Episode 10
★ 7.5A Relationship I Don't Want to Mess Up
2025-09-06 · 24mIshihara leaves in the morning, leaving much to be discussed. But Naoto is in the movies and misses 23 calls.
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E11
Episode 11
★ 7.5Still a Child
2025-09-13 · 24mNaoto meets Ishihara's mom who thinks Ishihara is still a child. Then Naoto knocks over a bag with condoms...
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E12
Episode 12
★ 7.0Being Independent
2025-09-20 · 24mYukari's mom wants Naoto and Yukari to break up. But Naoto decides that he doesn't want to give anything up.
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E13
Episode 13
★ 7.0Do You Really Love Her?
2025-09-27 · 24mNaoto decides to talk to Ishihara-san's mother and his honesty disarms her. Meanwhile, Satsuki is moving away?
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E14
Episode 14
★ 7.5Nao-kun Mk. II
2025-10-04 · 24mNaoto meets Satsuki's family. Why did she have to come home so suddenly? Who's Nao-kun Mk 2?!
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E15
Episode 15
★ 7.0What It Means to Love Someone
2025-10-11 · 24mSatsuki's emotions are a mess. Trying to get rid of the bad feelings, she tells Naoto she loves him.
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E16
Episode 16
★ 7.0A Contract for Sex
2025-10-18 · 24mIshihara-san broke up with Naoto?! And now Satsuki is offering to have sex with Naoto?!
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E17
Episode 17
★ 6.5Answers for Satsuki and Ishihara-san
2025-10-25 · 24mAfter a long time of soul searching, Naoto finally has an answer for both girls. Who is he going to pick?
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E18
Episode 18
★ 6.5What They're Searching For
2025-11-01 · 24mNaoto goes back to his old home to get the laptop, but can't find it. Instead he meets a woman named Rika.
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E19
Episode 19
★ 6.5Seeing Things
2025-11-08 · 24mSatsuki has fully disappeared. But on the school trip to Okinawa, Naoto keeps seeing glimpses of her. How?!
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E20
Episode 20
★ 7.0Now's My Chance
2025-11-15 · 24mSatsuki is leaving Okinawa this afternoon but she still won't meet Naoto. He has to figure out a way see her.
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E21
Episode 21
★ 8.0Honest Feelings
2025-11-22 · 24mNaoto has a date with Satsuki, but Makina wants to spend the day with him. Can he make it on time to Satsuki?
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E22
Episode 22
★ 7.5The One I Need
2025-11-29 · 24mNaoto Watari lives solely for his little sister, until his chaotic childhood friend storms back into his life.
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E23
Episode 23
★ 8.0A Story from Another Time
2025-12-06 · 24mNaoto finally manages to tell Satsuki how he really feels, and Satsuki's also ready to take the plunge.
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E24
Episode 24
★ 7.0New Life
2025-12-13 · 24mAbe tells Tokui that Satsuki might be pregnant! Tokui also finally reveals something about his past love.
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E25
Episode 25
★ 7.0The Shape of a Family
2025-12-20 · 24mNaoto and Satsuki attend Yayoi and Naozumi's wedding. Later they talk about the shape of family.
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E26
Episode 26
★ 7.0One Last Thing to Make Sure Of
2025-12-27 · 24mNaoto and Satsuki's summer together is about to end. Where will their individual paths take them?
Watch progress · Not trackedCast
Shuichiro Umeda
Naoto Watari (voice)
Yumika Yano
Satsuki Tachibana (voice)
Yurie Igoma
Yukari Ishihara (voice)
Megu Umezawa
Makina Umezawa (voice)
Yoshiki Nakajima
Shigenobu Tokui (voice)
Hinaki Yano
Suzushiro Watari / Sukekiyo (voice)
Naomi Ohzora
Tamayo Watari (voice)
