Zombie Kill: System Activated

August was in pain when his wife left him for a wealthier man. He drowned himself in alcohol every day. He became homeless too and lost everything. One night, August was walking to the park where he always sleeps when he heard screams. There he saw a creature devouring the woman's flesh. Just when August thought he would die, a system suddenly activated for him. Now he could see things and get weapons, unlike the others.
August used this to save himself and others. They built a small sanctuary. Just when August thought his life was finally going okay despite the apocalypse happening to their world. He learned that his ex-wife was still alive.
Will he save her? Or continue the life he built without her?

PS. Currently updating on Royalroad. But you can read ahead on my Patreon page.