Dad against the Odds (джен)

Setting: 5th Year — Harry discovers that part of his family is still alive, yet continues to be met only with rejection, and drifts rather listlessly through the remainder of the school year. During the summer holidays — even worse than the years before — everything finally changes, and as a last resort Harry seeks a direct confrontation with Voldemort. (Severitus)
Content Warning: Depictions of depression / violence
(Canon Note: Horcruxes do not play a role in this story.)
There are hints of possible Shippings in the epiloque, but nothing serious