Just a short summary of previous volumes first... we discover a few things.
1) Yano slept with Yuri in the classroom that one year (likely just that he wanted to be comforted). So he did lie to Nana when she asked him if anything happened.
2) We never find out (yet) why Nana was in her ex-bf's car when they died. I suspect Nana was cheating on him on a regular basis. It seems Yuri knows something, but they still haven't addressed that even by Volume 10. (Unless I missed it in earlier volumes hehe)
3) Takeuchi has loved Nana for a long time.
Volume 9 and 10 summaries:
- Takeuchi has been in touch with Yano over the past 4-5 years. But Yano told him not to tell Nana that they've been keeping in touch.
- Takeuchi once again attempts to ask Nana out, but she refuses him again.
- Takeuchi keeps on being persistent and eventually Nana gives in, thinking that Takeuchi has been the person that has been there for her and comforting her these past 4-5 years.
- Takeuchi and Nana are now officially going out.
- In Tokyo, Yano has a friend (girl) who does seem to be interested in him.
- We find out he has had a hard life in Tokyo, and that is the main reason he has not contacted Nana. Part of the reason is that Yano's mom has cancer and will die within 5 months.
- Yuri travels to Tokyo in pursuit of Yano, and is acting pretty desperate at this point. He refuses her again, but she's persistent and she ends up staying in Tokyo. (Hopefully we will find out in the next volume if Yuri knew anything about why Nana was in her exbf's car at the time of death).
- Yuri thinks Yano slept with her that one year because he pitied her, and not because he wanted revenge on Nana.
- Regardless, she's going full out to "acquire" Yano now.
- Yano does still love Nana a lot, but likely is prioritizing getting his life in order in Tokyo.
Anyway... this is how the relationship chart looks like now, school rumble anyone? haha