harmony is important in adventuring but it can take way too long for your cats to become friends through scenarios, + items to make it happen are expensive and late game. so i think it might be cool if cats could become friends in adventures! maybe it could be limited to just friends, no best friends and partners?

It could be like all those stories, found family through adversity and all that. If relationship boosts happened rarely (probably through non-battle scenarios) I could definitely see adventuring parties that start off acquaintances all around slowly becoming friends, which would be sweet.

With the new kinds of relationships discussed like mentor, if a system to go acquaintance -> friend doesn't get implemented in adventuring, then I'd definitely like to see one that goes friend -> (adventuring exclusive 2 harmony relationship)

I think this is a super neat idea! Was kind of sad when I realized you can't up your relationships anywhere in adventuring. Maybe at points II, III, and IV (after you choose between the rivers or cliffs/click "the trees seem untrustworthy") there's a very small chance two of your cats can ask to have their relationship increased, and after you defeat the boss at V, there's a slightly higher chance for two cats to ask to increase their relationship, maybe capped at one relationship increase per day/per run so that it's not super spammable.

I think it'd be a great addition, and it could help the player somewhat control which cats get relationship increases before you can access relationship-increase items.