NO RIGHT. an is always talking abt how she wants to be cool and mature like nagi (and kind of bounces between "I want a cool mature older sister to coddle me" and "I want to be cool and mature just like nagisan" see: wedmix2, bits of vot/wtwg, 1 star meiko side stories). she is a totally different person from kohane and ans relationship with her is and was so drastically different from her relationship to kohane, even if there are similarities. she looks up to her, she wants to be like her, thats the coolest fucking person in the world in her eyes. shes kind and gentle like kohane is. but shes so different from kohane
ans relationship with kohane is not just like the comeback of her relationship with nagi. yeah she has a similar kind of clinginess and attachment to both of them but (obviously) one is like her big cool older sis and the other one is the Aibou ... she even says in a vot side story(?) that if nagi wanted to take kohane away from her shed fight with her over it. she also says in the start of her wl1 chapters that kohane is the most important person in the world to her. I do believe that an loves kohane more than she loved nagi. like im saying these are two separate unrelated relationships in ans life and the way she feels toward kohane has pretty much nothing to do with nagi until she starts feeling awful about the idea of kohane leaving her just like nagi did. LIKE ANCHAN WAS KIND OF JUST A BABY WHEN NAGI WAS AROUND ITS TRUE