Grisaia no Rakuen

Synopsis

The girls at the dormitory find themselves with a lot of guilt about learning Yuuji's past, but continue to read regardless. The flashback starts with Yuuji in the hospital and being visited by Asako Kusakabe and her friend JB where Asako declares that she will be his god from that point on and takes him with her to her home. Here they find all the scars from his previous wounds. At dinner Yuuji accidentally kills a fly and shows signs of trauma from killing people. Shortly after, Asako is seen trying to feed Yuuji but he declared that her cooking is too horrible to be considered edible. Asako gifts Yuuji a dog which Yuuji names John and they become constant companions. Asako trains Yuuji in all sorts of things in which he takes a liking to sharpshooting. At a later date while Asako is away, the house is attacked by a bear which kills Yuuji's dog. Yuuji chases after the bear to save his dog but is not able to pull the trigger, specially after seeing it was just feeding its cubs. When Asako arrives he tells her that he was completely useless but Asako consoles him by saying that he is fine just the way he is. Later that day when they bury John Asako tells Yuuji that he is not allowed to die unless he saves 5 people and tells him that he should become someone who can pull the trigger for others rather than himself.

(Source: Wikipedia)