A diamond ring. When I looked to Shakuson I noticed that he was also wearing a ring. On his left ring finger.

Shakuson: “It’s an engagement ring. Though I didn’t have much choice in diamond size with my salary.” "…” “–Will you marry me, Themis?”

Themis: “…Thank you. You’ve made me very happy.” “–! Then–” “I have a present for you too.”

Themis pulled out her revolver, she points it at him her hand trembling so slightly and tears falling down her cheeks