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Dear Brother

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Anime
TV-14
1 Season
25m
16-year-old Nanako Misonoo, who attends a prestigious academy, deals with the drama and gossip of high school life via writing letters to her brother.

Season 1, 39 Episodes

Season 1 (39 Episodes)

Dear Brother - The Magnificent Ones
S1 E1
The Magnificent Ones,
Nanako has her first day at Seiran Academy. Rei helps her on the bus, and Nanako is instantly captivated by her charm. At school, Nanako meets Mariko, who immediately asks her to be her friend.
TV-14 25m 2026
Dear Brother - The Glass Slippers
S1 E2
The Glass Slippers,
Mariko looks out for Nanako before class, and shoves Tomoko out of the way when she finds Nanako. Fukiko comes to Nanako's class and announces three Sorority candidates: Mariko, Kaoru, and Nanako.
TV-14 25m 2026
Dear Brother - Nanako Is Disqualified?
S1 E3
Nanako Is Disqualified?,
An insulting note is posted about Nanako's candidacy for the Sorority on the school bulletin board, announcing to the entire school that Professor Misonoo is not really her father.
TV-14 25m 2026
Dear Brother - The Music Box
S1 E4
The Music Box,
Despite missing the selection party, Nanako has her interview, and humiliates herself. Mariko and Nanako realize that anyone could have left the message for Nanako, but Mariko correctly suspects Aya.
TV-14 25m 2026
Dear Brother - Thorns of Suspicion and Doubt
S1 E5
Thorns of Suspicion and Doubt,
Nanako sees Kaoru stops Rei from taking some pills. Fukiko invites Rei into the Sorority House to help out with work, but intentionally injures her hand. Rei demands that Fukiko bandage her bloodied hand, but Fukiko refuses.
TV-14 25m 2026
Dear Brother - Lost and Alone
S1 E6
Lost and Alone,
The bullying continues: Nanako's gym uniform is stolen and cut to shreds, and Tomoko won't lend Nanako hers.
TV-14 25m 2026
Dear Brother - The Darkness in the Clock Tower
S1 E7
The Darkness in the Clock Tower,
Depressed from her classmates' bullying, Nanako goes to the school's clock tower to spend some time alone. There, she sees Rei, smoking and throwing knives at a carving of Fukiko in the wall.
TV-14 26m 2026
Dear Brother - I Want You
S1 E8
I Want You,
Mariko tries to warn Tomoko off Nanako again, but Kaoru comes by and stops her. Fukiko invites Aya to the Sorority House and threatens her to stop bullying Nanako.
TV-14 25m 2026
Dear Brother - Relapse; Broken Heart
S1 E9
Relapse; Broken Heart,
Kaoru collapses from chest pains, so Nanako tries to fetch painkillers from Rei. Rei doesn't take the situation seriously, so Nanako slaps her.
TV-14 25m 2026
Dear Brother - Mariko...
S1 E10
Mariko...,
Mariko refuses to eat anything until Nanako forgives her, but Nanako is giving her the silent treatment. Kaoru notices Mariko's hunger strike and confronts her about it, angry that anyone would throw their health away when Kaoru herself is so ill.
TV-14 25m 2026
Dear Brother - Under the Elm Tree
S1 E11
Under the Elm Tree,
The Sorority members have a special study session at Fukiko's house. Fukiko invites Rei to join them, telling her to wait under the elm tree at five o'clock, but doesn't arrive.
TV-14 25m 2026
Dear Brother - The Scar
S1 E12
The Scar,
Nanako calls Kaoru to help take care of Rei. Kaoru arrives at Rei's apartment and slaps and yells at her for her masochistic devotion to Fukiko.
TV-14 25m 2026
Dear Brother - A Tale of Double Suicide
S1 E13
A Tale of Double Suicide,
Rei is well enough to go back to school. She confronts Fukiko, but is made docile with a few words. Tormented, she retreats to the clock tower and takes too much drugs.
TV-14 25m 2026
Dear Brother - The Secret Door
S1 E14
The Secret Door,
Nanako desperately tries to escape from Rei, but fails. Rei attempts to stab Nanako several times before regaining her senses and breaking down in tears when she realizes what she is doing.
TV-14 25m 2026
Dear Brother - Fukiko: The Sea Rumbles
S1 E15
Fukiko: The Sea Rumbles,
A Sorority member named Junko Nakaya fails one of her exams due to having been seriously ill, so Fukiko orders her to resign.
TV-14 25m 2026
Dear Brother - Comeback
S1 E16
Comeback,
It is Kaoru's first basketball game since her illness, and she is determined to win. Her playing is so great that the entire opposing team is forced to block her. Kaoru is injured during the game and blood spurts from her chest.
TV-14 25m 2026
Dear Brother - Post Scriptum
S1 E17
Post Scriptum,
Nanako realizes that she has fallen in love with Rei, but is too nervous to say anything. One of her letters to her Brother end up in Fukiko's possession and she must face her wrath.
TV-14 25m 2026
Dear Brother - Into the Dream
S1 E18
Into the Dream,
After Nanako accidentally misses her bus stop, Rei takes her to the park. The two spend a happy morning together, and in a burst of emotion, Nanako confesses her love.
TV-14 25m 2026
Dear Brother - The Transient Game
S1 E19
The Transient Game,
Rei refuses to react after hearing Nanako's confession and begins to intentionally avoid her, breaking Nanako's heart. Kaoru, sensing Nanako's pain, tells her to give up on Rei, for her soul is enslaved by a goddess, referring to Fukiko.
TV-14 25m 2026
Dear Brother - The Gardening Shears
S1 E20
The Gardening Shears,
Nanako and Tomoko decide to go to Takehiko's university fair. They invite Mariko, but she is reluctant because she thinks the men will corrupt Nanako.
TV-14 25m 2026
Dear Brother - The University Fair
S1 E21
The University Fair,
Nanako, Tomoko, and Mariko go the University Fair with Takehiko and Takashi, Fukiko's older brother. Mariko does her best to protect Nanako from the men, but ends up comically failing.
TV-14 25m 2026
Dear Brother - A Summer's Serenade
S1 E22
A Summer's Serenade,
Mariko and Nanako are invited by Fukiko to her country house for the weekend to help her prepare for her birthday party. There, Nanako goes for a walk near the lake and sees Fukiko playing her violin sadly.
TV-14 25m 2026
Dear Brother - The Forbidden Gift
S1 E23
The Forbidden Gift,
Home from the lake house, Fukiko and Rei visit Ms. Asaka's grave on the anniversary of her death, three years ago. The two are unusually civil; as they part, Fukiko invites Rei to her eighteenth birthday party.
TV-14 25m 2026
Dear Brother - Encore
S1 E24
Encore,
Confused by the events of the party, Rei inquires of Takashi as to why the song upset Fukiko so. It is revealed that, when Fukiko was twelve and Takashi eighteen, Takashi had brought Takehiko Henmi to visit their lake house.
TV-14 25m 2026
Dear Brother - The Scarlet Lipstick
S1 E25
The Scarlet Lipstick,
Rei reminisces about the first time she met Fukiko, remembering how, even as a child, her pride had still been admirable. She then overhears two Sorority members telling Nanako to meet Fukiko at the Sorority House suspiciously late at night.
TV-14 25m 2026
Dear Brother - The Promise in the Snow
S1 E26
The Promise in the Snow,
Rei reflects on that double suicide pact that she and Fukiko made shortly after Rei's mother committed suicide, when Rei was soon to be properly adopted by the Ichinomiya family.
TV-14 25m 2026
Dear Brother - An Incident of Bloodshed
S1 E27
An Incident of Bloodshed,
Mariko's parents are divorcing and she is traumatized, spending the night at Nanako's home to try coping.
TV-14 25m 2026
Dear Brother - The Christmas Candles
S1 E28
The Christmas Candles,
Everyone desperately looks for the missing Mariko, fearing for the worst. This includes both of Mariko's parents and even Mr. Shinobu's girlfriend, who calls her mother and apologizes.
TV-14 25m 2026
Dear Brother - The Assembly
S1 E29
The Assembly,
At the Student Assembly, Kaoru asks for the abolition of the Sorority. Rei is horrified at first, believing that it would destroy Fukiko's pride, but ultimately decides that she has to learn to live without the Sorority in order to be truly strong.
TV-14 25m 2026
Dear Brother - The Petition
S1 E30
The Petition,
Two Sorority members, Ogiwara and Komabayashi, persuade Aya's friends, Miyuki and Megumi, to steal and burn the petitions. Rei stops them. Aya intentionally takes the blame to protect the girls, saying that she'd ordered her friends to do so.
TV-14 25m 2026
Dear Brother - The Bad Apple
S1 E31
The Bad Apple,
The Sorority members are getting scared as the Petition gains movement and their own members begin signing it. Ogiwara and Kombayashi decide to take matters into their own hands by confronting Nanako in a broken down building.
TV-14 25m 2026
Dear Brother - Pride, and the Final Meeting
S1 E32
Pride, and the Final Meeting,
Fukiko continues to pretend that nothing is wrong. At the final Sorority meeting, none of the members arrive. Rei attends the meeting instead, and encourages Fukiko to continue with her speech.
TV-14 25m 2026
Dear Brother - Fly High
S1 E33
Fly High,
Rei dreams of her mother's death, in which Ms. Asaka reveals that Fukiko is her child as well. She was adopted immediately after her birth, depriving her mother of any chance to be near her.
TV-14 25m 2026
Dear Brother - Ablution
S1 E34
Ablution,
Nanako waits for Rei to pick her up for their date, but soon, everyone finds out that Rei is dead. Nanako, Tomoko, Fukiko, Kaoru, and Takashi go to the hospital to see Rei's body.
TV-14 25m 2026
Dear Brother - A Beach of Dreams
S1 E35
A Beach of Dreams,
The school attends Rei's funeral. Fukiko accepts all of the guests with dignity. Afterwards, she asks for two minutes alone and cries over Rei, telling her that she really did love her, and kisses her.
TV-14 25m 2026
Dear Brother - Glowing Fireflies, Blazing Passion
S1 E36
Glowing Fireflies, Blazing Passion,
Two weeks after Rei dies, it is the summer holidays. Kaoru goes for an examination and is told by her doctor that she needs more tests. She reacts badly, thinking she is going to die.
TV-14 25m 2026
Dear Brother - Carousel
S1 E37
Carousel,
Kaoru tells Nanako that she broke up with Takehiko because of her illness and mastectomy, and that Nanako is really Takehiko's stepsister. Nanako's father tells Nanako that she has a stepbrother, and that he loves his son as much as he loves her.
TV-14 25m 2026
Dear Brother - Yes
S1 E38
Yes,
Takehiko is about to leave for Germany, so Kaoru intends to leave him behind for good. Takehiko, Nanako, and Fukiko try to convince her that Rei would have wanted her to live her life to the fullest.
TV-14 25m 2026
Dear Brother - A Lingering Fragrance
S1 E39
A Lingering Fragrance,
Fukiko has a hallucination where Rei encourages her to find true love. Fukiko is tormented, thinking that Takehiko was the only love she'd ever have, and cries in her brother's arms.
TV-14 25m 2026

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Details

Dear Brother

Anime
TV-14
1 Season
25m
16-year-old Nanako Misonoo, who attends a prestigious academy, deals with the drama and gossip of high school life via writing letters to her brother.

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