Have to agree w/ everyone else here. Akira is, at times, unbearably annoying. As a child, his evasive reticence didn't bother me, because his determination to lie low and hide his powers made sense.
When we catch up with him as a young adult in chapter 11, however, he seems to have become the worst kind of generic isekai MC, spineless and indecisive. It makes no sense. Akira lived his previous life as a confident and successful adult, loving and losing before he died. So there's no reason for him to suddenly start feeling like a 12-year-old introvert, trembling in terror at his first boy-girl dance. It's shitty writing, unjustified and totally out of character.
Then again, it doesn't last. During the subsequent dragon hunt arc, he rises to his responsibilities, bravely facing both danger and the truth. I hope writer
Im Dal-Young sticks with that characterization, but worry Akira may once again become a passive dolt when it suits the "drama".