Off-duty Japan Self-Defense Forces (JSDF) officer and otaku, Youji Itami, is on his way to attend a doujin convention in Ginza, Tokyo when a mysterious portal in the shape of a large gate suddenly appears. From this gate, supernatural creatures and warriors clad in medieval armor emerge, charging through the city, killing and destroying everything in their path. With swift actions, Youji saves as many lives as he can while the rest of the JSDF direct their efforts towards stopping the invasion.

Three months after the attack, Youji has been tasked with leading a special recon team, as part of a JSDF task force, that will be sent to the world beyond the gate—now being referred to as the "Special Region." They must travel into this unknown world in order to learn more about what they are dealing with and attempt to befriend the locals in hopes of creating peaceful ties with the ruling empire.

Three Singaporean contestants went to a bar their last night in Taiwan. Holly, the tomboy bartender, gifted Meng Lian with a mixed drink called ‘Love in the Clouds.’ Suddenly a fight ensued in the bar, but Meng Lian, a national karate champion, successfully stopped the dispute. For Holly, it was love at first sight. Eventually Meng Lian also fell in love despite the distance between their homes.

To save flights costs and meet more frequently, Holly applied to become a stewardess. Her height, high IQ and language skills made her an ideal flight attendant. However, she resisted wearing make-up, high heels or a pencil skirt for her interview. Fortunately, their friend, Jerry, was willing to help her transform.

Pingan, a blunt girl with a warm personality meets Ye Chen, a cold and reserved guy who has just been released from prison. Their chance encounter leads to misunderstanding and being kidnapped together. But the two pretend to be a couple so their friends Li Ziwen and Xie Xile will get together. However, the mismatched duo finds themselves attracted to one another.

Ji Shu is a young writer of popular novels. His books are a hit among their many fans, but Ji Shu is blighted by emotional apathy and pessimism writer. His novels ultimately reflect this bleak outlook and almost universally end in tragedy. In many ways, he is the quintessential BE (bad ending) writer. By contrast, Song Yan Qi is an optimistic film and drama series planner. She loves happy ending (HE) stories. Song Yan Qi would like to adapt a Ji Shu novel for the screen but would ideally like to ensure the story ends happily – something Ji Shu cannot accept. But the duo’s lives are thrown into chaos when they are sucked into the world of the novel. As they begin to “live” the lives of Ji Shu’s characters, they begin to “rewrite” the story – and become drawn to one another. But will their own love stories end in joy – or sadness?

Everyone has their 15 minutes of fame. You Yuan Le wants to be the one to uncover the special side of Lin An An and turn her from an ordinary convenience store clerk to the most popular live streaming personality on his platform.