ルさん

⸻⸻MIYAGI

KARASUNO: 

Hinata Shōyō: 1 little sister (Hinata Natsu)

Kageyama Tobio: 1 big sister (Kageyama Miwa)

Sawamura Daichi: 2 little sisters, 2 little brothers

Sugawara Kōshi: 1 little brother

Azumane Asahi: 1 big sister

Nishinoya Yū: 3 big sisters

Tanaka Ryūnosuke: 1 big sister (Tanaka Saeko)

Tsukishima Kei: 1 big brother (Tsukishima Akiteru)

Yamaguchi Tadashi: only-child

Ennoshita Chikara: 1 little brother

Kinoshita Hisashi: 2 little sisters 

Narita Kazuhito: 1 big brother

Shimizu Kiyoko: 1 big brother

Yachi Hitoka: only-child

AOBA JOHSAI: 

Oikawa Tōru: 1 big sister

Iwaizumi Hajime: only-child

Matsukawa Issei: 1 big sister, 1 little brother

Hanamaki Takahiro: 1 big sister, 1 little sister

Yahaba Shigeru: 1 big brother, 1 little brother

Watari Shinji: only-child

Kindaichi Yūtarō: 1 little brother

Kunimi Akira: 1 big sister

Kyōtani Kentarō: 1 big sister

DATE TECH: 

Aone Takanobu: 1 big sister, 1 big brother

Futakuchi Kenji: 1 little sister

Koganegawa Kanji: 1 little sister

Sakunami Kōsuke: 1 little brother, 1 little sister

Kamasaki Yasushi: 1 little brother

Moniwa Kaname: 1 big brother, 1 little sister

Sasaya Takehito: 2 big sisters

Obara Yutaka: only-child

Onagawa Tarō: 2 big brothers

Fukiage Jingo: 1 big brother

SHIRATORIZAWA: 

Ushijima Wakatoshi: only-child

Tendō Satori: only-child

Shirabu Kenjirō: 1 big brother, 2 little brothers

Goshiki Tsutomu: only-child

Ōhira Reon: 1 big sister, 1 little brother

Yamagata Hayato: 2 little sisters

Kawanishi Taichi: 1 big sister

Semi Eita: 1 little sister

TOKONAMI: 

Ikejiri Hayato: 1 big sister

OHGIMINAMI: 

Towada Yoshiki: 2 big sisters, 1 little sister, 1 little brother

KAKUGAWA: 

Hyakuzawa Yūdai: 1 big sister

Komaki Yuzuru: only-child

Asamushi Kaito: 1 little brother

Minamida Taishi: 1 little brother

JOHZENJI: 

Terushima Yūji: 2 big sisters

Bobata Kazuma: 1 big sister

Futamata Takeharu: 1 little sister

Higashiyama Katsumichi: only-child

Numajiri Rintarō: only-child

Īzaka Nobuyoshi: 1 little brother

Tsuchiyu Arata: 1 big sister

Misaki Hana: 2 little brothers

WAKUTANI MINAMI: 

Nakashima Takeru: 1 big brother (Nakashima Isamu), 1 little sister (Nakashima Makoto), 2 little brothers (Nakashima Minoru, Nakashima Taira)

Kawatabi Shunki: 1 little sister

Shiroishi Yūki: only-child

Hanayama Kazumasa: 1 big brother, 1 little sister

Naruko Teppei: 1 little brother

Akiu kazuteru: 1 big brother

Matsushima Tsuyoshi: 1 big sister, 1 big brother

⸻⸻NATIONAL

NOHEBI: 

Daishō Suguru: 1 big sister

Numai Kazuma: 1 big brother, 1 little brother

Kuguri Naoyasu: only-child

Yamaka Mika: 1 big brother

SHINZEN: 

Chigaya Eikichi: 1 big brother, 1 big sister

NEKOMA: 

Kozume Kenma: only-child

Kuroo Tetsurō: 1 big sister

Yaku Morisuke: 2 little brothers

Haiba Lev: 1 big sister (Haiba Alisa)

Yamamoto Taketora: 1 little sister (Yamamoto Akane) 

Kai Nobuyuki: 1 big sister, 1 little brother

Fukunaga Shōhei: 1 little sister

Inuoka Sō: 2 little sisters

Shibayama Yūki: 1 little brother 

Teshiro Tamahiko: 1 big brother, 1 little sister

Yamamoto Akane: 1 big brother (Yamamoto Taketora)

Haiba Alisa: 1 little brother (Haiba Lev)

FUKURŌDANI: 

Bokuto Kōtarō: 2 big sisters

Akaashi Keiji: only-child

Konoha Akinori: 1 big brother, 1 little sister

Sarukui Yamato: 2 little sisters

Komi Haruki: 1 big sister, 1 big brother

Washio Tatsuki: 1 big sister

Onaga Wataru: 1 little brother

INARIZAKI: 

Miya Osamu: 1 twin brother (Miya Atsumu)

Miya Atsumu: 1 twin brother (Miya Osamu)

Kita Shinsuke: 1 big sister, 1 little brother

Suna Rintarō: 1 little sister

Ojiro Aran: 1 little brother

Riseki Heisuke: only-child

Ginjima Hitoshi: only-child

Ōmimi Ren: 1 little brother, 1 little sister

Akagi Michinari: 1 big sister

KAMOMEDAI: 

Hoshiumi Kōrai: 1 big brother (Hoshiumi Akitomo)

Hirugami Sachirō: 1 big brother (Hirugami Fukurō), 1 big sister (Hirugami Shōko)

Hakuba Gao: only-child

Bessho Kazuyoshi: 1 little sister

Suwa Aikichi: 2 little brothers

Nozawa Izuru: 1 big brother

Kanbayashi: only-child

TSUBAKIHARA: 

Echigo Sakae: 1 big sister, 1 little brother

Maruyama Kazuki: only-child

Teradomari Motoki: 2 big brothers, 1 little brother

Himekawa Aoi: 1 little sister

MUJINAZAKA: 

Kiryū Wakatsu: 1 little sister

Usuri Michiru: only-child

Unnan Keisuke: 1 big sister, 1 little sister

Mami Nozomu: 1 big brother, 1 little brother

ITACHIYAMA: 

Sakusa Kiyoomi: 1 big sister, 1 big brother {see end note}

Komori Motoya: 1 big sister, 1 little sister

Iizuna Tsukasa: 1 big brother, 1 little brother

⸻⸻V. LEAGUE

HIKARI PHARMACEUTICAL RED RABBITS: 

Hirugami Shōko: 1 big brother (Hirugami Fukurō), 1 little brother (Hirugami Sachirō)

Amanai Kanoka: 1 little sister

SCHWEIDEN ADLERS: 

Romero Nicolas: 1 little brother (Romero Rubens)

Hirugami Fukurō: 1 little sister (Hirugami Shōko), 1 little brother (Hirugami Sachirō)

END NOTE: If you’ve seen post calling Sakusa an only-child, please know they’re technically not wrong, but also not right. The guidebook does notes him down as an only-child, however it was later on rectified by official Shueisha / Shonen Jump online.