In Touken Ranbu: Hanamaru, whenever a new character is introduced, a bit of information about the character is displayed on screen - their name, what type of sword they are, and a number. For example, when Tsurumaru is introduced in episode 2, we find that he is numbered "23".
What do these numbers mean?
According to the Touken Ranbu Hanamaru Wikia, it's the order of sword arrivals in the Hanamaru Citadel.
The full list of the characters in order of their arrival:
- Yamatonokami Yasusada (the main character)
- Kashuu Kiyomitsu (Starter)
- Heshikiri Hasebe
- Imanotsurugi
- Maeda Toushirou
- Nikkari Aoe
- Hachisuka Kotetsu
- Mutsunokami Yoshiyuki
- Namazuo Toushirou
- Kasen Kanesada
- Souza Samonji
- Yagen Toushirou
- Shokudaikiri Mitsutada
- Gokotai
- Yamanbagiri Kunihiro
- Shishiou
- Ishikirimaru
- Akita Toushirou
- Midare Toushirou
- Nakigitsune
- Aizen Kunitoshi
- Doudanuki Masakuni
- Tsurumaru Kuninaga
- Hirano Toushirou
- Honebami Toushirou
- Atsushi Toushirou
- Sayo Samonji
- Uguisumaru
- Horikawa Kunihiro
- Taroutachi
- Jiroutachi
- Izuminokami Kanesada
- Ookurikara
- Mikazuki Munechika
- Hakata Toushirou
- Yamabushi Kunihiro
- Otegine
- Kousetsu Samonji
- Urashima Kotetsu
- Ichigo Hitofuri
- Tonbokiri
- Nihongou
- Kogitsunemaru
- Iwatooshi
- Hotarumaru
- Akashi Kuniyuki
- Nagasone Kotetsu
