Riki effectively became the heroine. Yuiko was already dealing with her regret by taking her own steps.
Yup. Yuiko won’t talk about her time in the fake world at all. She dodges the topic whenever Riki asks her. She refused to speak about it, presumably until Riki remembers her.
Their promise was roughly that she would confess if Riki remembered. After some time, Riki remembers what happened in the fake world, so he goes to see her.
There’s a more consistent evidence you could have used. For example: Refrain ends during Summer. Bokura no Asa ends at the end of Summer. Yuiko’s true end takes place at the start of Autumn/Fall. They fit together with no contradictions.
It’s a shame. IIRC YuTono was helping the anime staff with the storyline too, yet they still dropped the details. We didn’t even get Yuiko’s bittersweet smile T_T
I did like that, during the sleep-over episode (mid-way through Litbus season 1) Riki and Yuiko have a cute moment.
