Before the apocalypse, two sisters were content to coast through life. First, they bonded with a System, then worked hard to kill zombies and collect crystal cores, helping the System level up. Later, they awakened wood-type abilities and used the paired rings provided by the System to gather supplies, while puppet warriors helped them fight. The sisters and their puppets took in children who had lost both parents, and one by one, like-minded companions joined their Spark Squad…
Theme: You’ll never know your limits unless you push yourself.
