Complex sentence: At the beginning of the manga, Hotaru says that she has a crush on Miura, but at the end, when she apologizes to Sae (her best friend who also had feelings for Miura), she admits that she has a new crush on Sugisaki.
Split into simpler sentences: At the beginning of the manga, Hotaru says that she has a crush on Miura. By the end, when she apologizes to Sae (her best friend who also had feelings for Miura), she admits that she has a new crush on Sugisaki.