thank you for answering my last ask yeah I did a post on what touya has to do with the flower but like you said i beleived endevor that scene is supposed to show that endevor hasn't really forgot about what hes done to his family most importantly touya. because we know about touya based in shotos flashback about him having a fire quirk but a body unfit for it the flower reminds me of touya instead of endevor. so yeah the flower was supposed to indicate that he hasn't forgotten about touya.
The arc introduces the two remaining members of the family we knew existed but didn’t know by name (Touya and Natsuo) and goes to great lengths to keep sustained mentions/appearances for all of them, so I prefer to think of it as “hasn’t forgotten about his family” rather than “hasn’t forgotten about Touya”. Touya is included in Endeavor’s family, after all.
I also don’t know about “most importantly Touya”, as we don’t actually know what the Todoroki family thinks happened to him. For all we know, Endeavor could have never laid a hand on him upon him, knowing his body was weak. Assuming Touya = Dabi, nothing tells us Endeavor is directly responsible for his scars either. We don’t know whether he was kicked out, disowned, ran away, faked his death, etc, etc. We don’t know whether they think there is anything left to be done for him.
You brought up in your reply that there are four flowers, two open and two closed, but that’s actually wrong:
There are six flowers, as many as there are members of his family. “He hasn’t left us behind” is all of them, not just Touya. If you wanted to analyze them as a symbol, you could even go and say there are two flowers at the top (the parents), and four at the bottom (their children); out of the ones at the top one is in full bloom (Rei), and out of those in the bottom one has started to (maybe Fuyumi). The rest could be relationships that have not yet bloomed towards forgiveness.
It’s not really just “one” person in his family, as prioritizing a single one of them would actually work negatively toward Endeavor’s goal of them being together again. Neglect is a form of abuse too. Taking for granted those who want to give him a chance - Rei and Fuyumi - could make him lose them. It has to be all of them or none.
Of course, if you want to think of each flower as a family member, Touya is conspicuously absent, but the arc makes that exceedingly clear.
Furthermore, though, there is a very clear framing device used to tell the flowers are filling in for Endeavor:
A blooming bouquet right on top of a blooming wound.
The flowers in Rei’s room evoke Endeavor’s absence in body but not in spirit, right as a wound puts him at risk of being absent both in body and in spirit, as death would impede him from going back to his family.
