Below is a walkthrough of Martin’s Romance Stories in Rune Factory 5.
Siblings
Requirements: Friendship Level 2
Location: Martin & Cecil’s House
Objective: See what Cecil and Priscilla are up to
Approach Martin & Cecil’s House to trigger a dialog event. Wait until the next day then head to True Strike Smithy for a dialog event. On the same day after some time passes, head to the Blue Moon for a dialog event. Leave the Blue Moon then head to Martin & Cecil’s House. Enter the house to trigger a dialog event. When it concludes, leave the house then return to the smithy for another dialog event. Wait until the next day at around 5 or 6 pm, head to the Blue Moon to trigger the dialog event. Afterwards, the event will conclude.
Minor Event
Requirements: Complete previous event then wait a few days
Location: Pond of Hope (to the left of the Blue Moon)
Objective: Check in on Martin who looks lost in thought
Head to the Pond of Hope to the left of the Blue Moon to trigger a dialog event with Martin.