When this flower blooms

Can two friends sleep together and still love each other in the morning?

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."