Rio Sasaoka, a high school teacher struggling with the pressures of her job, finds solace in a secret social media account and the support of her caring boyfriend. When she's unexpectedly assigned as a homeroom teacher to a third-year class, Rio faces new challenges that test her resilience and rekindle her passion for teaching.
Sakamoto Chika, who works for a real estate company in Kagoshima, is having a hard time growing at work and is unable to respond to the proposal from her boyfriend. One day, Tsumura Kojiro comes to the real estate company looking for a house. Kojiro says he has no connection to Kagoshima. Tomoka is excited and introduces him to an apartment with a view of Mount Sakurajima, which is her top recommendation. However, Kojiro suddenly says, "I want a house where I can't see Sakurajima."
A lonely young man moves in a 50-year-old apartment building. When he meets the cheerful residents, he finds himself surrounded by small happiness.
Kenji is overjoyed when his usually thrifty boyfriend takes him on a trip to Kyoto for his birthday, but the trip ends up uncovering a painful topic.
Ai has had a crush forever on her classmate Tatoe. When she finds out that Tatoe is in a secret relationship with another girl, she sets out to sabotage their plans for the future.