P' Khun Phaen is put on trial for having multiple wives and ordered to choose just one. However, he refuses, and as a result, he is sentenced to death. Before his execution, he is offered a choice of swords from the "Samurai Continent," each with unique properties. After considering his options, the executioner decides to shave P' Khun Phaen's head instead of killing him, as punishment for his "crime of lust." P' Khun Phaen is then banished from the land. Before leaving, he requests and receives Tanjiro's sword, which holds the power of the Water Breathing Style. P' Khun Phaen is able to harness the sword's power, and the executioner allows him to leave, telling him to return in 100 years.
Here are the key facts from the text:
1. P' Khun Phaen is the main character.
2. P' Khun Phaen has multiple wives, including Mae Wanthong and Mae Laothong.
3. P' Khun Phaen is sentenced to death for being "full of lust and not loyal".
4. The executioner offers P' Khun Phaen a choice of swords to be executed with.
5. The swords are from the Samurai Continent and have unique properties.
6. P' Khun Phaen chooses the sword belonging to Tanjiro, which is said to be able to kill without causing pain.
7. The executioner decides to spare P' Khun Phaen's life and instead shaves his head as punishment.
8. P' Khun Phaen is banished from the land.
9. P' Khun Phaen is given the sword belonging to Tanjiro as a gift.
10. Whoever possesses the sword is said to possess its power too.
11. P' Khun Phaen is able to subdue the power of the sword.