So, Chidori cut her hair "September of [her] freshman year" to declare to "never fall in love again".
The Japanese school year begins in April, and September is just after summer break.
So presumably she had some "it" with Igarashi between April and end of Juli and/or during Summer break.
The following February / half a year later, the Valentine's Chocolate thingy happened (Ch.10&22)
https://dynasty-scans.com/chapters/hana_ni_arashi_ch10#11
https://dynasty-scans.com/chapters/hana_ni_arashi_ch22#12
(two flashbacks, same time-frame, different POV)
Chidori already has them feelz for Nanoha and decides to "end it" with Igarashi.
Half a month later / Spring, Nanoha confessed to Chidori and they're a couple ever since... in secret, of cos.
A final question is: how did Chidori and the senpai spend time together in the first place?
I kinda thought Igarashi may have been a member of the literature club.
I can't base this on anything but a hunch caused by
https://dynasty-scans.com/chapters/hana_ni_arashi_ch04#5
Chidori thinking "Somehow, it feels strange having Nanoha here" [in the club room].
Me thinks, that maybe, just maybe, Chidori had a one-sided crush on her senpai, confessed before or during summer break, didn't get the desired reaction (judging from the card later, prolly something amongst the lines of "you like me? ...like, in the gay-way? um, can't we be just friends?"), and cut her hair, still secretly swooning over her senpai because hearts can't be convinced so easily as getting a hair-cut.
But, she developed feelings for Nanoha over the time, then - half a year later?! - by Valentine's Day, senpai changed her mind, sent her the chocolate as well as that implicative card ("These aren't just as friends") - but, too late gal, Nanoha has her hooks deep into Chidori's heart already, so Chidori (incidentally spurred on by something Nanoha said) went to Igarashi and told her her true feelings "Yeah, thanks but no-thanks. I mean, what did you expect, keeping me on arm's length for half a year... I MOVED ON, BIATCH!" (-paraphrased).
Lucky for her, a few weeks later she finds out that Nanoha is one whose Love is the same as hers~
That's what I get from the text so far, but I wouldn't mind if things turned out to have happened differently / more dramatic, for the sake of suspense...
last edited at Aug 3, 2019 12:09PM