Sexy Dango's manga / #age gap(19)

Sooooo.... I liked the the subtle way to portray their feelings and the way the author worked out their relationship at the end, with that brotherly love at the verge of turning romantic (which I think most probably will be the case when they start living together), the only reason I won't give it 5 stars is because the story felt kind of bland/inconsistent at times(?) I myself can't understand it, I don't even know if those are the words I'm looking for, but something let me unsatisfied about it