As a matter of fact, Sukekatsu ITO, the son of Yoshimasu who was related to Sorin was arranged to be dispatched, but Mancio went instead because Sukekatsu was in Azuchi-cho, and could not depart on time.
本当は義益の息子で宗麟と血縁関係にある伊東祐勝が派遣される予定であったが、当時祐勝は安土町にいて出発に間にあわないため、マンショが代役となったという。