{{explanation}}
The title means: “Happiness is SCD”

1–
: 1c turn RH ending BtoB in 2pos, 1W facing up and 1M down (2c up) | all set up/dn in DTr ; 1c turn 4cnr RH, and pass Rsh to face 1cnr
9–
: SetH&G , at end set advancing to P
17–
: 1c turn RH once ending BtoB, 1M facing up and 1W down | All Set up&dn in DTr ; 1c turn 2cnr RH and pass Rsh to 2pl (2,1,3)
25–
: All Circle6 and Back