Hazure Skill: The Guild Member with a Worthless Skill Is Actually a Legendary Assassin, Vol. 4 (manga)

When Almelia, the hero Roland accompanied on their quest to defeat the Demon Lord,suddenly receives a marriage proposal from a prince of a neighboring country, the Kingtasks Roland with escorting her to her potential groom. However, the motives behindthis proposal seem suspicious, and it’s up to Roland to get to the bottom of it.