He can't even recall her name in his first life while in this one, she is everywhere.
But regret over his old actions of injecting that bone marrow still didn't exist in Alfin. That bone marrow is the reason he is so strong besides the uneven distribution of his stats.
This was not an RPG game, putting all stats into a singular aspect of the body won't yield good results. Only a sturdy and balanced foundation can handle higher-tier skills.
This was a fact that was learned by the players a lot later. But at that point, it was already too late for most and they could never advance to grade seven.
But for Alfin, none of that mattered due to his broken trait. Even if it has degraded to a much lesser version of the original 'Optimized mutation'. It still held enormous research value.
And alfin even believed that after he succeeds in his research of cellular memory retention, then he may be able to rebuild his volatile mutation to its perfect form.