Yorozuya Gin-chan e yōkoso

Yorozuya

A small group of four people doing all kinds of jobs which was founded by Gintoki. The four members are Kagura Shimura Shinpachi, and the previously mentioned, Sakata Gintoki.

Sakata Gintoki

He is a samurai one of which is often called relics of the past. Gintoki used to be in the Joui war, being called Shiroyasha. Though nowadays he is usually slacking off and not paying the rent.

Kagura

She is a Yato, one of the strongest races in the entire universe. Soon after staying in Edo, she got affiliated with a small yakuza gang. When they wanted her to kill, she didnt want to be with them anymore, so she ran away. Thats when she met Gintoki and Shinpachi. They helped her and let her stay with them until she got enough money to go back to her home planet, but she ended up staying with them regardless. Kagura = best girl

Shimura Shinpachi

He is another samurai. His father used to run a dojo, but when there was a sword ban, all the students quit, Shinpachi's father got in debt. A while after, he died, making Shinpachi and his sister inherit the debt.

Long story short, Gintoki makes Shinpachi lose his job and, and as it is difficult for samurai to get a job, he begins working with Gintoki.

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Myanimelist: https://myanimelist.net/anime/918/Gintama