[And just like that, Lunafreya's hands are there, trying to gently persuade him to release his wrist. Savaging your own self isn't going to help in the slightest, Shintaro!]

There is nothing you could do that would hurt me, Shintaro, but refuse to allow yourself peace. If Lena wanted you to have forgiveness, do you not owe it to her to accept it?

What happened was an accident. Your grief is well-founded, but not because you did anything wrong.