One thing I found really hilarious in this story is that, everytime they did "it", there would be an influx of shrine visitors. Imagine the faces of Rio's parents. It's like announcing to the whole family that they're doing "it" (ノ≧∇≦)ノ
They really outright revealed it's Lan Zhan hahahahaha ε=ε=(ノ≧∇≦)ノ When I read the novel for the first time, I never knew it was Lan Zhan who pinned him at the tree and kissed the daylights out of him, I only found out near the end
I saw the anime adaptation and went straight here because I can't get enough of them (≧∀≦)