List of quests (Zero)/Chapter 2/Rare Herb Retrieval

"I would like to acquire a certain herb used in Internal Medicine research. I will share more details in person, so please head on over to St. Ursula Hospital's 1F Internal Medicine office."

Rare Herb Retrieval (稀少薬草の回収) is an optional support request that occurs during in.

Background
The quest is available at the start of Part 2 of Threat Letter Investigation.

The quest expires after facing Yin during Threat Letter Investigation.

Walkthrough

 * 1) Travel to St. Ursula Medical College and speak with Doctor Lago in the 1F backrooms.
 * 2) Travel to the Crossbell Cathedral and speak with Archbishop Eralda.
 * 3) Head to the Archbishop's office and speak with Father Renton.
 * 4) Return to Doctor Lago.

Notebook

 * Doctor Lago asked us to retrieve a herb called Lupinus Grass. Crossbell Cathedral may have it. Let's ask Archbishop Eralda.
 * Archbishop Eralda doesn't think too kindly of the doctor. However, it sounds like he'll give it. Let's head to the archbishop's office.
 * Got the herb from Father Renton in the archbishop's office. Learned about the feud between the archbishop and the doctor.
 * Let's deliver this to Doctor Lago.
 * Delivered the Lupinus Grass to Doctor Lago.