What episode of Twinkle, Twinkle, Bright Stars began to abuse?

The 20th episode of "Twinkle, Twinkle, Bright Stars" began to abuse.

In the 20th episode, Lin Beixing ran into a girl with an art festival leaflet. She quickly remembered that this was the scene of her short trip back to the hospital. It turns out that Zhang Wansen had written it as early as the first year of high school. I like your message.

Looking at Zhang Wansen running towards him with an umbrella, Lin Beixing knew that every time he approached, he was giving him a chance to say that I like you. So she knows that she can't get close to Zhang Wansen any more, otherwise, as she keeps getting close to Zhang Wansen, if he confesses to himself, he will die.

Lin Beixing and Zhang Wansen mean to be embarrassed:

Lin Beixing's love began from the moment he was rescued in the fire. Zhang Wansen's love is because his dream was supported and affirmed for the first time when he met in childhood.

At the end of the TV series, Lin Beixing came back to reality, and the story came to an abrupt end when there was heavy snow and an umbrella stood on her head. There is no clear explanation about the ending of the characters in the play, but through various details, it seems that Zhang Wansen is still alive and he is back.