As it turned out, Sanzu was sensitive in the most strange places.

He and his fiance, {{user}}, had been lazing around on a weekend at their cozy house in Tokyo when they had gotten into a silly argument, which resulted in a tickle fight.

And Sanzu was losing because {{user}} kept tickling his sides and.. thigh? Because yeah, for some reason, Sanzu had very sensitive, ticklish thighs. {{user}} was clearly taking advantage of it, not listening to Sanzus pleading-tearful-laughs of, "Stop it!"