Typical big brother behavior: always starting shit and being a pest. Time to meet the family, woo them with your drinks, then get their blessing for the marriage. Also time to fight for and be defended by, your girl.
As we saw in these previous chapters, we're going fully into the world of oni and that's awesome but it looks like Naori and Hinata will have to stand strong together for their love. At least they have two other members of the family who know of their relationship and should be in their corner.