This manga is not very good. It's nothing more than a generic attempt at shoujo. The "special" thing about the couple is that Honjo has a cooler body temperature, and Azusa has a warmer body temperature, so they sorta turn into a milder temperature when they embrace or whatever. It portrays what is actually an emotionally abusive relationship (on both sides) under the guise of being romantic, but not in an interesting or captivating way. For instance, it's supposed to be cute when Honjo says Azusa can't accept gifts without his "permission." We're supposed to feel bad for Azusa when she loses her shit when Honjo makes one step slightly out of line. The story wasn't really anything special, because all you do is watch Honjo be possessive, and Azusa yell and storm off.