Based on "In Another World with My Smartphone", Season 2 Episodes 7-8
The what-if scenario:
This will be the main character's(Touya Mochizuki's, first meeting with Hildegard Minas Lestia(a future wife candidate) and Tsubaki(a ninja who becomes his subordinate).
This story will revolve around these two girls wanting to avoid conflict with an evil prince so they decide to help him defeat the overpowered main character in a duel. Touya agrees ion this duel to decide to prevent his friend from being pressured into marrying this evil prince and agrees.