L, an angel who’s endlessly fascinated with the human world, gets into trouble when she unthinkingly saves the life of Han Shi Yeong, a man who was meant to die. To make up for her mistake she must guard him on Earth for one hundred days and keep him safe from Hwan, a death god who is required to collect his soul. Both supernatural beings must contend with the knowledge that whichever one of them fails by the end of the hundred days will be erased from existence, and the longer they stay on Earth the further their powers fade and the more human they become.
Emilia, a Filipino who arrived in Japan with aspirations of becoming a model, coincidentally encounters Matsuyama Mirai, an aspiring photographer. Their connection deepens as they find themselves drawn to each other. Mirai, intent on immortalising their moments together, diligently captures their essence through the lens of his camera. However, an unexpected parting disrupts the flow of their narrative. Subsequently, the saga of these two individuals unfolds beyond the shores of Japan, traversing the vast sea to the Philippines, where their story takes on new dimensions.
Mika goes all the way to Seoul to see her sweetheart Hyeong Jun who's been waiting for her. She suffers faints at the airport and she mistakes Kim Gyeon as Hyeong Jun due to trauma. Kim Gyeon also ends up falling in love with her, thus disrupting the balance between the three. Their memories start intertwining, but, before long, a tragedy occurs
Hoshino Midori has been worn down by the hectic pace of working at a cosmetic surgery clinic. But when the clinic suddenly goes bankrupt, she unexpectedly finds herself unemployed. Seeing her at a loss, her older brother, Konta, suggests she take a "vacation from life" by staying at the villa their late grandmother left behind. Awaiting Midori at the villa are a beautiful seaside view, a garden overflowing with ripe summer oranges, and a mysterious caretaker named Nishigami, whose otherworldly presence immediately stands out. Soon, her close friends Rinrin, Tsumugi, and Tetsuro also gather at the villa. With Nishigami's help, they settle into a fulfilling summer vacation, enjoying carefree days together. Yet as Nishigami quietly watches over them as the villa's caretaker, a trace of sadness occasionally crosses his face. What is the true reason he continues to protect this villa? As summer draws to a close, an approaching storm threatens to dramatically change both Midori's and Nishigami's destinies.
