(geometry) the joining line between two vertices of a polygon; edge, [side] / (graph theory) any of the connected pairs of the vertices in a graph; edge

strange

flat (adjective)

(number of) times

gatekeeper / gate, door

law / rule / rash / hasty

metamorphosis, transformation / abnormality / (sexuality) Short for 変態性欲 (hentai seiyoku, “sexual perversion”). / (informal) pervert

everywhere / all over / all around / revolve

Yupian

response song; song in return