He said the building was going to collapse and nobody believed, I don't think they would if he said there's bombs in the bridge
What excuse would he use to how he discovered the bombs? They're in a hidden place he shouldn't have gone if he was just going home.
Damn I saw a lot of people complaining about MC in the comments of another manga site saying he's dumb because chased the girl to save her, but he started all this terrorism because he didn't want people to get hurt. I thought it was very brave, since I like MCs that aren't normally agressive...