けい
よろこ
None
If a pilot manages to land under a canopy with a helicopter that's pierced with a sideways barb in the heart of winter you should congratulate them! People should always be congratulated for doing good things, and this is one of the best things you've ever heard of!
Congratulate the pilot with cake (けい)!
Currently there are no similar looking kanji which exist in the WaniKani learning system