Chinese Scans [HERE]
Chapter 17 starts off with Nina presenting her bento* to Koga and explaining that they will be meeting the next day at Rabbits Ear Park(REP)**, 10am. As according to Yuri (not revealed to Koga yet) she and her boyfriend had went there before therefore its contains some memories for Yuri.
On the next day, the four were grant with a nice weather but in order to get some time alone with Koga, Yuri and asked Kuni to stall Nina's time. Unable to do it, Kuni panics when Aoi comes out to check who rung the bell. Kuni explains that he is here to pick Nina up but unfortunately Nina had already left. Upon Aoi's suspicions, Kuni flees the scene with a slap mark on his face.
Koga then find Kuni at REP and is amused by the slap mark. Embarrassed, Kuni warns Koga about that. Shock to find Nina at REP, Yuri calms herself and tells Nina that she seems excited but she is not looking forward to the outing at all. Speechless, Koga runs up to them and shields Nina. But Nina is all confused about the sudden happenings thus Koga had to apologize and reveal Yuri's identity of being his ex.
Since Kuni had explained everything to Koga, Koga wants to know what Yuri wants from them and Yuri explained that all she had done was so that she was able to meet Koga again but Koga refuse to believe. This irritated Yuri and she collects her cool and changes the topic. Koga then leaves with Nina leaving Kuni and Yuri behind. Covering up with laughter, Kuni ask Yuri if she likes it when someone she likes treats her coldly, thus leaving her alone.
In a park, Koga hands Nina a drink. Nina recollects the happening from before. She still couldn't believe Yuri was Koga's ex despite knowing Koga was certain to have someone before thereby concluding that Yuri still likes Koga. However all these time, Koga had been holding onto Nina's hand and she had only came to realize that recently.
Koga then bring Nina to the place he used to go such as the road he used walk to school, a book shop he used to visit, his friend's place and lastly reaching his middle school whereby showing Nina where his and Kuni's class were.
"Would you hear me out?"
Koga starts explaining that Yuri and he date for only 10days in 2nd year and she was the one who confessed. While they dated, Koga couldn't achieve Yuri's ideals and she was also very unhappy when they dated therefore Koga told her that she was a bother because no matter what he did she was always crying thats why Koga decided not to have a 'relationship' anymore. Koga felt that maybe he should have told Nina earlier but when Kuni ask him about meeting Yuri again, he thought a rejection would have resolve the matter.
"After being with Nina, I've finally realized that sometimes its not possible to resolve matters alone."
Touched, Nina and Koga were about to get into a lovey dovey atmosphere when they were disrupted but the young onlookers from the school. On their way back, Nina was still embarrassed when Koga revealed that he used to be in the baseball club until 2nd year when he started going for extra classes.
Today, so many stuffs about Koga were revealed. Although they weren't all happy but as long as we're together we can face them together. I believe so.
Back home, Nina suddenly receive a call asking her to go back for work the next day because Yuri had suddenly quit.
End of Chapter 17
*Bento = packed lunch
**Please don't doubt. According to the raws its really the name of the theme park ^~^;