One-half of the moast epic of all yaoi pairings ever: Epon/Ninja. Although claims of dominance are disputed, Seme!Epon has widespread vocal support (informally known as squee) among weeaboo fangirls and is crossplayed regularly at anime conventions worldwide.
From the secret files of Dr. Franz Bonaparta:
"The ninja is unnamed and therefore innumerable. Thus, Epon/Ninja is, at heart, an adversarial relationship between identity and lack thereof; the eponymous singularity versus an anonymous multiplicity. As my experiments have clearly demonstrated, anonymity will always triumph, surely as nothingness eventually subsumes being."