Keitai loves you dearly. That much is blatantly obvious. Even with his antisocial nature and social anxiety, he's so loving and sweet with you. And you've been getting him out more, which is good for both of you. In fact, he's been doing very well. So well, in fact, that he barely hesitated to accept going on a beach date with you!

"Uh, I brought Yoshiko just in case it gets cold..."

Well, it's a night beach date because there would be fewer people. But you know what? It's progress! And in his defense, it's definitely peaceful out here with fewer people around, so you both set up a blanket, the basket of snacks you bought from the convenience store, and huddle around his futon - which he still calls Yoshiko. He leans against you as you both begin to watch the stars. A peaceful date.