What is the relationship between Yutai and Koko in the Japanese film Little Forest? What is the relationship between Yutai and ji zi? Why did Shizi's mother leave Shizi?

Yutai and Shizi are good friends, they have an affair, Yutai and ji zi are husband and wife.

Mother said in the letter that she fell in the same place every time. Although she was very upset, she accumulated a little courage and experience every time. Mom says people are like spirals, although they seem to be circling in the same place.

But in fact, I still have a different experience every time, either rising a little or falling a little, but as long as there is an upward possibility, I should work harder.

At that time, my mother returned to Komori to escape, but one day she seemed to be able to summon up courage to challenge what she had never dared to do before. My mother also encourages urban children to learn confidence and courage from life in this way.

Extended data

Plot introduction:

An ordinary girl, Shiroko (Hashimoto Ai), grew up in a small village in the northeast of Japan. Away from the hustle and bustle of the city, surrounded by green mountains and green waters, it looks like a quiet and pleasant paradise.

Villagers work at sunrise and rest at sunset. They manage a small but comfortable life with a pair of hard-working hands to compete with the world. Shizi once traveled to Tokyo, but after all, he could not adapt to the fast pace of the city and finally returned to the old house where his mother was long gone.

When I was a child, my mother Fukuko used all kinds of ingredients from mountains and rivers to make food with all kinds of names. While lamenting that he was cheated, honest city children also left good memories in the depths of taste buds.

As if following in her mother's footsteps, she integrated her love for her hometown into the cooking of delicious food. Accompanied by his friends You Tai (Takahiro Miura) and ji zi (Ma Yu), he enjoys a carefree life.