Don't read, it's a waste of time. There's little to no progression until the very end.
This is like a shitty jumbled up anthology that tries to connect but doesn't make any sense.
No chance she thinks that way when she was 5 years old. There's literally nothing going on inside my head besides maybe ice cream when I'm a 5 year old.
Though it's sad to know that she probably wouldn't win the race to grab Eiyuu's heart, she definitely did a slam dunk straight to the best girl basket.