However you want to interpret the name, the set essentially translates as "Regret of Parting Baseball Players". For the past few years, BBM has issued a "retirement" set honoring players who called it quits at the end of the prior season. This year has some big names, and a big price jump.
The 2016 set had a print run of 3000 sets and retailed for 4000 yen (about $40). However, this year's set was limited to 2000 boxed sets with a retail price about 6000 yen ($60).
|sample image from BBM|