Go to the Naganaki Shrine to improve your relationships

Sometimes you’ll want to hang out with a certain social link character and get hit with a message that says you don’t think you’ll grow closer if you hang out. This means you can still chill with them, but you won’t see the next scene in their story. Doing this does improve your relationship, meaning you might unlock the next scene sooner because of it. But if you want to progress your relationship with someone and they’re not free to hang out, you can swing by Naganaki Shrine and pay a small fee to grow closer to someone, making it more likely to see their following social link scene next time they’re available.