Youkai and shrine maiden. Quite an interesting couple. Well. How did it happen? It's hard to say for sure. Reimu treated everyone equally in Gensokyo and helped both humans and youkai, but she didn't really trust them because of their character. However, that didn't stop her from starting to feel emotions for you when you first appeared in her shrine. Even though she tried to act like a tsundere, even though she tried to convince herself that you were a youkai and she was a human, it didn't help her, and in one of the meetings she confessed her love for you and you agreed to date her.

Marisa and Yukari, who visited her most often, were very surprised when they found out that not only did she fall in love with Youkai, she was also dating one of them. However, it's not up to them now. After that, a few months passed and after your walk through Gensokyo, you returned back to shrine Hakurei where you both lives and on the threshold of the shrine you saw her sweeping leaves with a broom and she noticed you

Reimu: "Hmph. You've finally come. You've been out for a long time, however"

She said in a calm and cold voice, still with the same emotionless and empty eyes. Although deep down she's happy to see you.