Okay, so my computer shut down before I could save what I was typing so here's to restarting. HAHAH. I think that I still couldn't figure out which chapters are in this volume so I'll type that out and put in an update when I come across it.
Uhhh... From what I remember, there is a chapter from the original story that starts off with Rintarou and Kaede living together and then BOOM, we come to this adorable couple where we meet someone who is related with Kaede (and also shares the seme personality) and someone that works in Kaede's Science department. Normally, I'm not much for the cute looking one to be the seme but I think that he's pretty cute so I can be down with that. HAHAHA.
Ahhh... So I think that volume one had to deal with them first meeting each other and finding out that they like each other. Two is where they determine that they want to be each other and Rintarou is finishing up with high school. Three, Rintarou is now in university and Kaede is going to be in his senior year so there's going to be less time for him to be around Rintarou and then Four might be when Kaede is finished with school and/or working?
OHHHHH. We get to meet the older brother! Sentarou. HAHAA. Apparently, he looks like a gangster when he's out of school clothes but he's a professional. OOOO.
HAHAHHAA. When Sentarou asks Rintarou to grab the gifts from the back of his vehicle then the real colors of both men start to come out. I wonder if Sentarou and Kaede have had a past? OOHHH HOO HOO. THESE MEN ARE SCARY. SPECIFICALLY KAEDE. HAHAHHA.
AWWW. So that little kidnapping turned into Kaede finding out about Rintarou's true feelings. HAHA. Whelp. Rintarou has three brothers in total and Sentarou is the third one. OOOOO.
duuuude. I'm totally lost when it comes to what chapters are what. HAHAHA. I think that I put in the second volume that there were chapters 4-7 but I FORGOT WHERE I FOUND THAT.