Here are some ideas for the Old West rp.

Like one idea is to have it be during the height of the cattle moving season and an outlaw gets work on a big ranch, befriending the owner and other cowboys but is keeping their past a secret.

Also maybe a fun summer festival type thing. This idea needs a little more fleshing out.

An outlaw is gravely injured while running from the law. They end up getting saved by a local ranchers daughter that doesn't know they are a bad person and helps nurse them back to health. With this the pair become closer, especially when it is found out that the outlaw is a female. Little does the outlaw know that the family they are now working for is the family of the lawman that has been tracking her down for months and what happens when he comes home to visit his family and sees the person he has been just one step behind sitting across a table from his sister.

For the Japanses one:

The emperor has just come into town searching for a bride or brides for his son. The son is also with him, but little is known about the prince other than he is a massive playboy. The royal entourage arrives in a small village where the children have been training as ninjas, but the fact that also the females have been trained is not known. Of course the Emperor and his son are both Samurai warriors. There are multiple stops with little tests for those that are picked to go on the journey.

A royal princess is traveling to her new husband's family and her journey is interrupted by a famous samurai outlaw that at first holds her as a hostage for money, but as time goes on, feelings start to spark between the two. Especially since it appears the future husband to be has not responded to any demands.

More may come to mind.