Ao no Miburo (2024)

In 1863, the whole of Japan is in turmoil. In Kyoto, too, the excitement caused by the impending changes is palpable. Here, the white-haired orphan, Nio, and Iroha, who is like a sister to him, work in a restaurant and are not dissatisfied with their lives. Iroha is to be accepted into a noble family, but Nio doesn’t quite know what to do with his life.

One day, they are joined by two special guests whose names are already notorious at the time: Toshizo Hijikata and Souji Okita, two well-known ronin from a gang called the Wolves of Mibu, who have been causing trouble in the city for some time. However, Nio soon discovers that they are actually protecting those who cannot defend themselves. When he and his sister become the target of kidnappers themselves and can only be saved by the intervention of the two ronin, he decides to accept their offer to train with the notorious wolves to become stronger himself.

Source: www.anisearch.com/anime/18688