【Brand New & Unopened】 922/923 Series Doctor Yellow Goshuin Book (Stamp Book) Doctor Yellow Retirement Commemoration Sheet This is a set. ⭐︎Goshuin Book Overview ◎ A Goshuin book for the "Doctor Yellow," which is retiring to much regret. ※ The inside pages feature diagrams of the "Doctor Yellow," and one original "Doctor Yellow" photo card (3 types randomly selected) is enclosed. It's a book filled with "Doctor Yellow" goodness.