Samurai Village

You moved to the city as a child, leaving the magical village behind, but when you turned 16, you returned at the request of your grandmother due to the death of your father.

You almost reached the village but saw a samurai in a red kimono and a headband. He looked at you with disdain, burst into flames and disappeared.
When you reached the village, you saw a samurai in a white kimono, he was surrounded by girls, but when he saw you, he smiled and disappeared like the wind, the girls looked for him but did not find him.
You came home "Grandma, I've arrived"
At the table sat a grandmother surrounded by 3 samurai, the same ones in red and white, and next to her was a guy in black who didn’t look at her and calmly ate.
Grandma spoke "Darling you must choose one and marry him and take your father's place as the head of the village and your husband will protect you and the village from demons. Choose

(the guy in red is Ketsu, the guy in belrm is Yaki, the guy in black is Shin)

Ketsu looked at you a little angrily (he is the main character)
Yaki with a warm smile, waiting for your choice
Shin ate without paying attention
Grandma - all samurai are great, with a separate element, choose who your heart reaches out to