Tokyo MX · Running

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

2025

Last aired: S1 E26, One Last Thing to Make Sure Of · 2025-12-26

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

Shuuichirou Umeda Naoto Watari

Yumika Yano Satsuki Tachibana

Yurie Igoma Yukari Ishihara

Megu Umezawa Makina Umezawa

Hinaki Yano Suzushiro Watari

Yoshiki Nakajima Shigenobu Tokui

Season 1

E1 The Day Peace Began to Collapse 2025-07-04 · 30 min Watari Naoto and his sister Suzu try to live a normal life. His destructive childhood friend Satsuki returns.

E2 Small Lies 2025-07-11 · 30 min The plants in the garden are beginning to sprout. But so are the small lies that everybody employs.

E3 Worldly Desires, Begone 2025-07-18 · 30 min Ishihara-san has the image that Naoto is a perfect, kind, chaste saint. Can he kill all his desires, though?

E4 Showing and Being Seen 2025-07-25 · 30 min Everyone is going to the beach. Satsuki and Ishihara get bathing suits. What will Naoto say to them?

E5 Ideal Partner 2025-08-01 · 30 min On their walk, Naoto and Ishihara run into Fujioka, her "ex-boyfriend". What really happened between them?

E6 Confession 2025-08-08 · 30 min After overcoming multiple obstacles, Ishihara finally confesses her feelings to Naoto. What is his response?

E7 After School, Just Before Summer Break 2025-08-15 · 30 min Ishihara and Naoto go on a date at the zoo, albeit with Suzu in tow.

E8 A Cute Junior 2025-08-22 · 30 min Naoto has his first day on the job. Satsuki goes to her new job, but it's in the seedy part of town?!

E9 The Fireworks 2025-08-29 · 30 min After the fireworks, a violent storm forces Naoto, Ishihara-san, and Satsuki to spend the night together.

E10 A Relationship I Don't Want to Mess Up 2025-09-05 · 30 min Ishihara leaves in the morning, leaving much to be discussed. But Naoto is in the movies and misses 23 calls.

E11 Still a Child 2025-09-12 · 30 min Naoto meets Ishihara's mom who thinks Ishihara is still a child. Then Naoto knocks over a bag with condoms...

E12 Being Independent 2025-09-19 · 30 min Yukari's mom wants Naoto and Yukari to break up. But Naoto decides that he doesn't want to give anything up.

E13 Do You Really Love Her? 2025-09-26 · 30 min Naoto decides to talk to Ishihara-san's mother and his honesty disarms her. Meanwhile, Satsuki is moving away?

E14 Nao-kun Mk. II 2025-10-03 · 30 min Naoto meets Satsuki's family. Why did she have to come home so suddenly? Who's Nao-kun Mk 2?!

E15 What It Means to Love Someone 2025-10-10 · 30 min Satsuki's emotions are a mess. Trying to get rid of the bad feelings, she tells Naoto she loves him.

E16 A Contract for Sex 2025-10-17 · 30 min Ishihara-san broke up with Naoto?! And now Satsuki is offering to have sex with Naoto?!

E17 Answers for Satsuki and Ishihara-san 2025-10-24 · 30 min After a long time of soul searching, Naoto finally has an answer for both girls. Who is he going to pick?

E18 What They're Searching For 2025-10-31 · 30 min Naoto goes back to his old home to get the laptop, but can't find it. Instead he meets a woman named Rika.

E19 Seeing Things 2025-11-07 · 30 min Satsuki has fully disappeared. But on the school trip to Okinawa, Naoto keeps seeing glimpses of her. How?!

E20 Now's My Chance 2025-11-14 · 30 min Satsuki is leaving Okinawa this afternoon but she still won't meet Naoto. He has to figure out a way see her.

E21 Honest Feelings 2025-11-21 · 30 min Naoto has a date with Satsuki, but Makina wants to spend the day with him. Can he make it on time to Satsuki?

E22 The One I Need 2025-11-28 · 30 min Naoto Watari lives solely for his little sister, until his chaotic childhood friend storms back into his life.

E23 A Story from Another Time 2025-12-05 · 30 min Naoto finally manages to tell Satsuki how he really feels, and Satsuki's also ready to take the plunge.

E24 New Life 2025-12-12 · 30 min Abe tells Tokui that Satsuki might be pregnant! Tokui also finally reveals something about his past love.

E25 The Shape of a Family 2025-12-19 · 30 min Naoto and Satsuki attend Yayoi and Naozumi's wedding. Later they talk about the shape of family.

E26 One Last Thing to Make Sure Of 2025-12-26 · 30 min Naoto and Satsuki's summer together is about to end. Where will their individual paths take them?

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