It would have been an interesting take if they indeed broke up for some time, experienced different hardships and possible relationships but eventually get back together. Just a thought.
Anyway, the story got even more ridiculous, don't think even PA teacher would be enough for his scores but as we seen "dem basketball moves" it might be a Chekhov's Gun...
Rinko will make a man out of Ryo for sure ( ͡° ͜ʖ ͡°)