The virus leaked out of the failed laboratory, and the experimenters lost control after being infected. The government tried to cover up the truth, and the city was completely locked down. Order collapsed, people panicked, triggering the robbery of supplies, exposing humanity, and at this time, an inexplicable system appeared in the heroine's mind. This system can be exchanged for a variety of supplies. And he also awakened his superpower, and her boyfriend. Gained the fire and thunder bow ability. And he is a veteran, and the heroine is a silly sweetheart. But it has very strong strength. With your boyfriend? Break the shackles of doom and become the overlord of the base
Concept: When the doomsday comes, the heroine obtains the base created by the system and her boyfriend to break the shackles of the doomsday, and their base becomes people's last hope.