Responses
he is correct read the raws and you will understand the whole situation , here you go
http://www.dm5.com/manhua-17-suiqinwenhejintuiliangnan/
It reminds me of having read in spanish. It was easy for me to understand, since i'm portuguese.
Spoiler
There is one scene where Yu-kun seems to be cheating in Ririka, well in that angle it appears that he is kissing that teacher. But it is not true, he was taking a photo where they almost kiss to threat the teacher to stop messing with Ririka. That teacher was one of his friends since children, but she had feelings for him and was trying to separate them.