>>3811733Prime foreshadowing.
It's fascinating how a lot of Yuu's behavior gets given a new context with this.
Even when he noticed red flags, Yuu still focused on observing things about those around him, like when he figured out Guren set him up yet still wondered his motives because he saw him crying.
And he had to helplessly watch Mika die, like thrice already.
Yuu being all about watching and protecting Mika makes total sense.