Miwa (Sayu Kubota), Motoaki (Riku Hagiwara), Ritsu (Fuju Kamio), Aoi (Natsumi Okamoto) and Satoru (Ayumu Mochizuki) have lived at the same apartment complex for years and they are childhood friends. When they were younger, they always played together. Now, they are high school students and they attend the same high school. They are still friends, but their relationships has changed. Miwa has feeling for Motoaki, but she can't tell him about her feelings. Motoaki is unaware of her feelings towards him and treats her like a friend. Aoi acts like she is good friends with Miwa, but, Aoi is frustrated by her sense of inferiority and jealousy towards Miwa. Aoi is dating Satoru. Meanwhile, Ritsu complains about the relationships of the other 4 and keeps her distance from them.—AsianWiki

Having living in the same apartment complex their entire lives, Miwa (Sayu Kubota), Motoaki (Riku Hagiwara), Ritsu (Fuju Kamio), Aoi (Natsumi Okamoto), and Satoru (Ayumu Mochizuki) have been friends since childhood. Growing up side by side, the five friends have been a part of each other's lives for as long as they can remember. But now that they're in high school, things between the friends are starting to change. Having developed feelings for Motoaki, Miwa is mortified by the idea of confessing how she feels. Keeping her feelings to herself, Motoaki has no idea how she feels about him; as such, he continues to treat her as he always has: like a friend. Meanwhile, Aoi struggles to hide her own poisonous feelings towards Miwa. Constantly frustrated by her feelings of jealousy and inferiority, Aoi tries to put up a good front, but deep down, her feelings towards Miwa continue to fester. Even with Satoru by her side, Aoi can't seem to shake her growing contempt. Fully aware of the constantly fluctuating feelings of his friends, Ritsu decides to keep his distance from them all. But the bonds of friendship keep pulling him back. Will these life-long friends ever find a way to get back what they once had, or has fate decided it's time for them to move on?—Rakuten Viki