Can anyone tell me about the plot of Betta and the main characters in it Thank you

People in two worlds can be friends, enemies, and mistakes, but if they fall in love, the end is only to go to extinction. It's like a bird falling in love with a fish, desperately trying to stay together, but it hurts each other and destroys itself. However, the more different the world, the more the two can attract each other, and the more difficult and obstructive the environment, the more desperate they are.

Love without hesitation is not only heartwarming, but also heartbreaking, but all this will always burn out in the youth of life. For Yu Yan, who is in a girls' school in a junior high school and has a strict family education, life is a series of regular plans. What time to go to school and leave school, what time to do homework and study, what time to learn piano tuition, all within the specified time, and even before going to high school, no matter where you go, your parents will pick you up.

Yu Yan can only learn about the world outside her home through the TV, but as long as it is a violent or vulgar program, her parents will immediately turn the TV to the channel. So going to co-educational high school made Yu Yan feel fresh and frightened, and her classmates often made fun of Xiao Yanzi's ignorance, and the years seemed to only change her appearance, and the first time I saw Yu Hao was at the age of seventeen. On the way home from piano practice, Pei Yuyan saw a group of thugs beating a teenager, Yuyan escaped according to instinct, but she didn't know what force pulled her, and brought her back to the scene.

Yu Yan took out the whistle she carried with her and blew it loudly, which scared the gangsters away and relieved the young man. 'Are you alright?' Yu Yan approached and asked with concern.

With sweat and blood stained on his face, Yu Hao raised his head and looked at her, because this was the first time Yu Yan had spoken to him, even though they seemed to have known each other for many years......

For Pei Yuyan (An Yixuan), who is in a girls' school and has a strict family education, life is made up of a series of regular plans, and everything is a pre-arranged template. Until a group of gangsters beat up a teenager Yu Hao (played by Guo Pinchao), the unintentional rescue made two people from different worlds have been tied since then.

Yu Hao's father died early, and his mother basically lived alone after remarrying. Xunqi (played by Zhang Xunjie) and Shan Lijie (played by Lan Zhenglong) in the village are his buddies, and the three of them skip class together, have fun together, play pranks together, and get punished together, and finally the three also join the local gang. And Yu Yan broke with her parents for Yu Hao, followed Yu Hao to live a life of exile in the underworld, and finally the holy lily of the year became Sister Yanzi, who was respected by all brothers.

It mainly tells the love story between a simple high school girl who loves to play the piano and a gangster, and their love is likened to the infatuation between birds and fish.