Series calculator: Sonny Angel

Sonny Angel secret odds: your real chance of Robby

Stores list Robby at 1 in 144, and many series add a second secret at 2 in 144. At $12.25 a box, an even chance at Robby takes 100 boxes, or $1,225.

Sonny Angel at a glance

Maker	Dreams Inc., Japan
Official odds	Not published. Sonny Angel says only “Secret figures are rarer than regular figures”
Robby	About 1 in 144, as listed by stores
Second secret	Often 2 in 144, so any secret is about 1 in 48
Series sizes in 2026	12 regulars + 1 secret (Hippers Cherry Blossom) or 6 regulars + 2 secrets (Summer Vacation)
Price	$12.25 a box, $147 for 12 or $73.50 for 6, at the Sonny Angel USA store

1. Your chance of Robby, or any secret

Secret odds: 1 in

Boxes you'll open One 12-box assortment is 12.

Price per box

Change it to what you pay.

Your chance of at least one secret in 12 boxes: 8%

You'd spend$147.00

Even chance takes100 boxes$1,225.00

90% chance takes331 boxes$4,054.75

Even after 144 boxes, your chance is only about 63%, because every box is a fresh roll and nothing carries over.

Regular figures in the series

Secret odds: 1 in A secret takes a regular figure's place.

Price per single box

Assortment box price

Boxes in one assortment box Use 6 for six-box series.

Buying random single boxes, the average collector needs 37 boxes to see all 12 regular figures.

Average cost$453.25

Repeats on the way25 figures

Unlucky 1 in 10 needs56 boxes$686.00

That's about 3.1 assortment boxes of 12 at $147.00 each. An assortment box can still have repeats, so buying by the box doesn't skip this math.

Many series have two secrets. Store listings often show the first at 2 in 144 and Robby at 1 in 144.

Add them up and any secret is 3 in 144, or 1 in 48. An even chance at any secret takes 33 boxes, about $404. Robby alone takes 100.

These numbers come from stores, not from Dreams. Treat the answers as a good guide, not a promise.

Sonny Angel's own store says buying an assortment box "does not guarantee a full set." So repeats can happen even when you buy the whole box.

Collector Adi Sharpe pulled her Robby from a $14 box, and calls the hunt "my version of going to the casino." Set a box limit before you start.

No. The Shu Uemura series says "There is no Secret or Robby Angel included in this series." Check your series first.

331 boxes at 1 in 144. At $12.25, that's $4,054.75.

Prices checked on October 31, 2026. Series change, so check the odds on your own box.