Same Cell Organism (Boy’s Love manga)

Nakagawa and Yokota are tow boys very much in love with each other. Yokota is more open with is feelings, but Nakagawa is easily embarrassed of public displays of affections. Though they may be outwardly different, their feelings for each other are the same – their connection is such that they liken themselves to Do-Saibou Seibutu (same-cell organisms).