As "Kanmon Nikki" (Diary of Imperial Prince Fushimi no miya Sadafusa) described the Seho clan as 'the successor of the Toki clan', the Seho clan seems to have been considered as the original direct descendant of the Toki clan.
『看聞日記』には世保家が「土岐氏惣領」と記されており、世保家こそが本来の嫡流と見られていたようだ。