

Listless geek Mizuto Irido and introverted nerd Yume Ayai seemed like a match made in heaven, connected by their mutual love for literature. Unfortunately, their differences gradually grew, and they separated just after their middle school graduation. But, as if by divine comedy, the two find themselves reunited as step-siblings. A rivalry begins to brew between the former couple, both unwilling to acknowledge the other as the older sibling. In an attempt to "solve" this issue, Mizuto and Yume agree upon a rule: whoever crosses the boundaries of siblinghood norms loses, and the winner will not only be called the older sibling, but also get to make a request. However, now that they live under the same roof, the lingering memories they share start to influence their actions—possibly rekindling the feelings that may not have been fully extinguished in the first place. ...
⭐6.73
🏆5887
Genre : Comedy, Romance
Seasons : summer
Type : TV
Eposide : 12
Status : Finished Airing
Studio : Project No.9
duration : 23 min per ep
Rating : PG-13 - Teens 13 or older
Popularity : 817
Member : 328421

Fukui, Norio
Producer

Iizuka, Aya
Producer

Koutani, Satoshi
Producer

Maeda, Kenta
Producer

Nishi, Kei
Producer

Okamura, Takema
Producer

Oomori, Shinji
Producer

Oyama, Hiroyasu
Producer

Ozawa, Fumihiro
Producer

Sotokawa, Akihiro
Producer

Takashino, Shuuichi
Producer

Todoroki, Toyota
Producer

Yamada, Kouhei
Producer

Yanagi, Shinsuke
Director

Tateishi, Yayoi
Sound Director

Fukui, Youhei
Episode Director

Matsumoto, Masayuki
Episode Director

Sadohara, Takeyuki
Episode Director

Yamauchi, Tomio
Episode Director

Akao, Deko
Script

Sugisawa, Satoshi
Script

Iida, Shigehisa
Storyboard

Shimazu, Hiroyuki
Storyboard

Takahashi, Masayuki
Storyboard

DIALOGUE+
Theme Song Performance

Nakamura, Kanata
Theme Song Lyrics

Tabuchi, Tomoya
Theme Song Composition

Tomggg
Theme Song Composition

harmoe
Theme Song Performance

Adachi, Yuusuke
Key Animation

Aoyagi, Masayuki
Planning

Ariyoshi, Atsushi
Planning

Busa, Yukiko
Key Animation

Cai, Yinkai
Key Animation

Hang, Xinhua
Animation Director

Hong, Beom-seok
Animation Director

Inaka, Mani
Key Animation

Ishihara, Tomomi
Special Effects

Itou, Yukihiro
Planning

Jiang, Yong
Animation Director

Kamishiro, Kyousuke
Original Creator

Kaneda, Kenichirou
Planning

Kawada, Tetsuya
Director of Photography

Kawahara, Kumiko
Animation Director

Kawamoto, Yukiko
Animation Check

Kawamura, Hitoshi
Chief Producer

Kikuchi, Sadakazu
Planning

Konishi, Keisuke
Planning

Kubota, Akira
Planning

Kunieda, Shingo
Planning

Masaki, Yuuta
Animation Director

Matsubara, Katsuhiko
Planning

Matsui, Kyousuke
Key Animation

Miyazaki, Yasuko
Key Animation

Mizuno, Takahiro
Animation Director

Mizutani, Hiromi
Music

Moriya, Haruki
Animation Director

Murayama, Kotomi
Director of Photography

Nanba, Hideyuki
Planning

Ogawa, Eri
Chief Animation Director

Park, Hye-ran
Animation Director

Satou, Katsuyuki
Chief Animation Director

Shinkai, Shouto
Key Animation

Suzuki, Youko
Color Design

TakayaKi
Original Character Design

Takechi, Tsuneo
Planning

Tsuruta, Naokazu
Planning

Usui, Rie
Key Animation

Wang, Meng
Animation Director

Yamazaki, Riraku
2nd Key Animation

Yamazaki, Asuka
Planning

Yurugi, Sou
Chief Producer

Yusa, Kazuhiko
Planning

Zhao, Qingyun
Animation Director