Honestly, it feel like any chapter on side characters will be a better romance than the main one. When was the last time Neon does anything nice for Nono, excluding when Mikan told her to ? Because top of head, there are only the directions given at school and the cake for the birthday, outside ofthat she is either mean to Nono or being nice because Mikan try her best to make them go along .
I really like the idol actually, she's cute, cool and friendly with everyone (Except Neon...)
Honestly that's not surprising given Neon's attitude most of the time.