Singcada can be befriended automatically by completing the "King of Cicadas" quest on the stairs up to Mt. Wildwood. Evening Cicadas can be found on trees in Breezy Hills at day. Then sleep seven times in-game to pass the week. Singcada can then be found with the Yokai Watch and will offer to be your friend without battling.
Yo-kai Watch 3
Singcada can be found rarely in the binoculars at Mt. Wildwood Summit, and commonly in Harrisville.
Yo-kai Watch: The Movie
Singcada is first summoned as part of Nathaniel's team in the 1st movie.
Freed from Crank-a-kai: "Drawn to me by my incredible voice? I can't blame you."
"Singcada" is a portmanteau of sing (or singer) and cicada.
"Higurashimaru" adds the old-fashioned -maru suffix typical of boy names to higurashi.
Singcada has similar origins to Cadin, but its Japanese name instead refers to the higurashi (the Tanna Japonensis, also called "evening cicada"). Unlike its cousins, who are most active during summer, its song is heard the most in autumn and late summer, especially when the sun has set or clouds darken the sky. Its melancholic "kana kana" cry fueled the inspiration of writers and poets, and it's a recurring sound in the visual novel series Higurashi no Naku Koro ni.