@Koni The first anything is always going to be beloved. The first girl or first guy. It is what got them to keep on going and reading. The first pair can't do no wrong because it was the first. As for the current arc....I have no idea why the author did this split.
@Lex79 I feel that Saya will be a future focus sensei eventually since she is a teacher by this point. Maybe she get her own student love interest by this point. Who knows really.
@DeprivedOtaku Because this arc goes on for 2 more volumes is why people hate it so much. It lasts longer than people would like. And not many like this MC. But the cameos make up for it. To show how some of them are doing.
@Darudius Yes. She already loves him. But Yamato wouldn't be happy with that if he isn't the fastest guy around he would feel like he isn't worthy of her. The both of them have a inferior complex problem. She got a idol job because he broke records and got famous and she couldn't measure up to him.
@Darudius More to do with pride. Of course Ouka would accept his love for her but she knew that he wouldn't be happy with that answer. He wants to be the number one guy in her heart.
@Darklight99 She was mentioned during Chapter 53 when Satou mentioned that she was in kindergarten by this point in time. So it seemed like 4 years went by since the 5th arc Saya is a 3rd year and Rin graduated so 2 years went by
This series timeline seems to go 2 years after the 4th arc. Since Satou's baby sister is a kindergartener by this time in the 6th arc so he has to be at least 22-23 by this time.