Picked Up Something Bad! (やばいものを拾ったっス！ Yabai mono o Hirottassu!) is the ninth story arc in Diamond is Unbreakable.
Josuke and Joseph share an awkward moment before discovering Shizuka, an invisible baby (of the Stand Achtung Baby) apparently abandoned on the streets of Morioh. When Shizuka falls into a pond while invisible, Joseph manages to impress Josuke by using his own blood to discover her, and their relationship improves. Joseph subsequently adopts Shizuka.
- 050 (315). Picked Up Something Bad!, Part 1
- 051 (316). Picked Up Something Bad!, Part 2
- 052 (317). Picked Up Something Bad!, Part 3
- 06 (34). Let's Go Play at the Mangaka's House
- 13 (87). Picked Up Something Bad!