godan verb (-mu), intransitive verb
come fluttering in; come dancing in
Describes light objects like leaves, petals, or snow being carried in by the wind or drifting inside. The verb emphasizes a gentle, floating motion.
窓を開けると、桜の花びらが舞い込んできた。
When I opened the window, cherry blossom petals came fluttering in.
風に乗って枯れ葉
Dead leaves came dancing into the room on the wind.
godan verb (-mu), intransitive verb
drop in unexpectedly; happen unexpectedly
Used for unexpected visits, sudden opportunities, or chance events that arrive without warning. Often carries a slightly positive or neutral tone, like a pleasant surprise.
突然、昔の友人が家に舞い込んできた。
Suddenly, an old friend dropped in at my house.
思いがけない仕事の依頼が舞い込んだ。
An unexpected job offer came my way.