
I wasnt able to find the actual manga for "Overload", but I chanced upon this
http://blnokimi.com/summary-miyamoto-kano-overload-rules-doujinshi/
It seemed that Hikaru and Yuki 'broke up' a while back. And Hikaru had sex with somebody else around 2 yrs snce their relationship started
So most likely they got back together since in this manga (Rules 2nd Season) they are already in their 5th yr..

Woh!!!!!!! I Really shoked i want hikaru with another man, yuki you fellow i hate you!!!!!
My poor hikaru

When appears more Spolier(?!?!) tell us it is exciting!!!!!!!!!
How do you sum up:
Splendid
Wonderful
Genius
Beautiful
Compelling
Amazing and
"Oh my goodness!" in one word??!