Synopsis
Kouta's world just got turned upside down. His dad's remarriage meant a new stepsister, Aika, and from their first encounter, it's clear she's everything he isn't. By day, Aika effortlessly plays the "perfect angel" for her parents, but behind closed doors, she's a cheeky teenager, a complete mismatch for Kouta. Their personalities clash violently, sparking arguments the moment their eyes meet. They might just be the world's worst siblings, locked in a constant battle of wills. Despite an incredibly rocky start, a subtle shift begins. Beneath Aika's wild exterior, a flicker of interest starts to grow for her caring brother.
(Source: Coolmic)
Note: Episode 1 received an advanced distribution on AnimeFesta on December 12th, 2025. The start date reflects the start of the regular series broadcasting.
(Source: Coolmic)
Note: Episode 1 received an advanced distribution on AnimeFesta on December 12th, 2025. The start date reflects the start of the regular series broadcasting.
Saison
Season 1
9
épisode(s)
S1 · Épisode 1
• January 5, 2026
—/10 Flamers
0.0/10 TMDB
—/10 Ma note
A Pair of Really Crappy Siblings!
Aika, the new younger sister of Kota Takamura from his father's remarriage, is a super sassy gal who bluntly calls her stepbrother “lame” upon first meet. Calling each other names, with each holding the worst impression of the other, they begin living under the same roof. But Aika would bring men into her room and get down to business whenever the parents were out. Kota is greatly troubled by her loud and clear moans, but then one day, something changes...
6 min
S1 · Épisode 2
• January 12, 2026
—/10 Flamers
0.0/10 TMDB
—/10 Ma note
The Hell Are You?
That day, Aika was indulging in intimacy with her boyfriend Takahashi in her room as usual. However, a certain situation stirs trouble between them. To make matters worse for Aika, Kota, who had heard the commotion, shows up at the door. Aika tries to brush him off and send him away, but Kota makes a bold move that takes them both by surprise.
6 min
S1 · Épisode 3
• January 19, 2026
—/10 Flamers
0.0/10 TMDB
—/10 Ma note
A Secret From Mom
Despite Aika skipping school and bringing boys home—behavior that could be called delinquent—she hides it from her parents and acts like a model daughter... Living together, Kota witnesses her dual nature firsthand. One day, Kota accidentally runs into Aika in the bathroom right after she's had a shower. Wondering which is the real Aika, he plucks up the courage to ask her directly...
6 min
S1 · Épisode 4
• January 26, 2026
—/10 Flamers
0.0/10 TMDB
—/10 Ma note
A Ready-Made Duo
That night after the incident in the bathroom, Aika and Kota each lay in their own rooms, lost in thoughts of the other. Aika replays Kota's words and actions in her mind, sensing something different from the guys she'd dated before—guys who were only after her body. Late at night, Kota goes to the kitchen to prepare instant noodles for a late-night snack. Then, Aika comes over...
6 min
S1 · Épisode 5
• February 2, 2026
—/10 Flamers
0.0/10 TMDB
—/10 Ma note
Aika's Close Call!
Aika still lets Takahashi into her room, although today she seems unusually reluctant. The tactless Takahashi doesn't seem to care however, teasing that all guys get horny around the sexy Aika. Aika snaps and slaps him across the face. Takahashi then changes his tune, trying to force himself on her...
6 min
S1 · Épisode 6
• February 9, 2026
—/10 Flamers
0.0/10 TMDB
—/10 Ma note
Just Hold Me Tight, Dammit
Kota narrowly defeats Takahashi and succeeds in protecting Aika. But now, with Aika still in her disheveled state, she asks him to hold her tight, leaving him flustered. Out of a sense of responsibility as her older brother, Kota tells her to put her clothes back on properly. However, after she had tidied herself, Aika demands he embrace her once more. Kota found himself cornered, with nowhere to escape.
6 min
S1 · Épisode 7
• February 16, 2026
—/10 Flamers
0.0/10 TMDB
—/10 Ma note
The Confession and The Climax
The emotional and sexual tension reaches its peak: Aika and Kouta share tender and explicit moments, almost crossing the line completely, but with interruptions and hesitations. Their bond strengthens amidst the forbidden and the inevitable, with more romance beneath the fanservice.
6 min
S1 · Épisode 8
• February 23, 2026
—/10 Flamers
0.0/10 TMDB
—/10 Ma note
Episode 8
6 min
Sortie de l’épisode le 2 mars 2026
S1 · Épisode 9
• March 2, 2026
—/10 Flamers
0.0/10 TMDB
—/10 Ma note
Episode 9
6 min
- Aucune saison ➜ avis de la série entière.
- Saison + “Tous les épisodes” ➜ avis de la saison.
- Saison + Épisode ➜ avis de l’épisode.
Aucune review (série entière) pour l’instant.
Aucune review pour ce filtre.
Format
TV
Année
2026
Épisodes
—
Popularité
2155
Studios
Studio Houkiboshi, Suiseisha