- Yoichis childhood friend or simply they met and both fought each other in the forrest as small kids (similar to Ibukis situation with that sagonomiya guy that was thinking that ibuki will be his bride [becouse he misunderstood as young age]).... and so she know thinks that she will marry yoichi [maybe a promise]now
- yoichis chosen future wife.... maybe yoichi's father made an aragment for a marriage and that girl has been chosen for him.....(that's why yoichi's dad send him to city to gain normal life experiance to make him ready for that :P)
- someone who heared about yoichi from somewhere and she decided to look for him as she heared that he is very strong
- maybe yoichi has a sister (or step-sister :P)
edit:
well I'm kinda confused about who that person might be (colour page from ch33)
http://mangahelpers.com/downloads/re...165/1#apicture Well first she looks like Ibuki.... but the kimono-like cloths are exacly the same like the person from ch34 (that I mentioned above).... but that person has tied hair in few places and a long braid behind +scarf like thing on top of her hair so its very hard to tell if this person from that colour page is her or its ibuki....................... I kinda think that the new girl that (kissed) gived CPR was her (from colour page of ch33) but on the page she has her hair untied (and without scarf and her other cloths...since on the colour page she wears a swimsuit)...... well she looks kinda like Ibuki but there is a little difference that I noticed and got confused.... since the left side of head we see other hair cut.... like short hair that got cut on neck lenght..... that kind of hair cut has the new girl and not Ibuki ^^
So I think that if the new girl is the one from the colour page than Ibuki has a VERY STRONG rival xD since that girl is vry pretty, she was searching for yoichi, she kinda gived him a kiss (in front of ibuki) ^^ not forgetting that she has large breasts too.... so Ibuki kinda loses the BIG attidute here ;] and with the violance actions she kinda loses too....... ehhh few weeks to next chapter and then we will learn more about that girl..... cant wait.... was she chosen as a bride for yoichi and so she searched for him (by earlier hearing that yoichi went to city and so where she can search for him) or is she a childhood friend.... someone he was training/fighting as children and they made a promise to get married when they grow up..... or ehhh last possibility someone from distant family...sister/cousin/half-sister/step-sister
Time moves slowly.... what a pain....