Antiserum

Players generally recommend completing the routes in the order of Zen → Yoosung → Jaehee (Casual) before moving to Jumin → Seven (Deep) for the best narrative progression. Other Possible Interpretations Depending on the context, your query might also relate to:

In this mode, you can specifically pursue the routes for 707 (Luciel Choi) and Jumin Han . Unlocking: It typically costs 200 Hourglasses to unlock.

While there isn't a specific item called "antiserum" in the game, "Deep Story" is a dedicated gameplay mode that allows players to unlock the "deeper" secrets of the plot.

Players generally recommend completing the routes in the order of Zen → Yoosung → Jaehee (Casual) before moving to Jumin → Seven (Deep) for the best narrative progression. Other Possible Interpretations Depending on the context, your query might also relate to:

In this mode, you can specifically pursue the routes for 707 (Luciel Choi) and Jumin Han . Unlocking: It typically costs 200 Hourglasses to unlock.

While there isn't a specific item called "antiserum" in the game, "Deep Story" is a dedicated gameplay mode that allows players to unlock the "deeper" secrets of the plot.