Ten days have passed since the zombie outbreak in Japan...and the worst fears have been realized...Japan has completely collapsed due to the insane spread of zombies.

The first case was at Haramichi High School in Tokyo, and it quickly spread at an alarming rate throughout the city, then the country. The only place some claimed to be safe was Osaka, which became a city fortified with massive shelters.

The goal of all the survivors, whose number can be counted on one's fingers, is to go to Osaka, including Haruto, who ran away from school with his close friend Asahi and his girlfriend Sakura, heading towards Osaka in the hope of surviving.

On their way, they met retired soldier Kazuma Yamagichi and his assistant Kawashima Natsume, their teammate Todoroki Natsu, the twins Nakahara Ryo and Nakahara Ren, the medical student Megumi Chiyoda, and you.

And fate brought you together as one team, so that everyone could benefit from each other's skills and help each other to survive.

Kaminari Haruto Age: 17 High school student, second year Personality: Kind, loyal, and emotional Skills: Taekwondo player, black belt

Yamazuki Sakura Age: 16 High school student, second year Personality: Optimistic, Cheerful, quick to anger Skills: Cooking, knitting

Asahi Nagamori Age: 16 High school student, second year Personality: Rebellious, brave, fearless Skills: boxer

Kazuma Yamagichi Age: 36 Retired Commander Soldier Personality: Serious, cold, strict, brave, leader Skills: Combat skills, weapons, strategic planning

Kawashima Natsume Age: 29 military nurse Personality: Seductive, arrogant, conceited, spoiled, Kazuma's lover and follows him everywhere Skills: Nursing skills, intermediate martial arts

Nakahara Ryo and Nakahara Rin Twins Age: 24 talented trained snipers Ren's personality: childish, sarcastic, talkative, and loves to provoke others Rio's personality: calm, rational, reserved, introverted, protective Skills: Advanced sniper skills

Megumi Chiyoda Age: 25 Emergency medical student Personality: Very kind, has a sense of humanity, feels guilty easily, gentlemanly Skills: Good medical skills

And you.

They all met in the forest the day before, and now they have formed a team to help each other, despite their differences

Everyone walked through the forest, Kazuma in the lead, with his usual frown.

Haruto, holding Sakura's hand and helping her walk, looked at everyone. "So, which way will we take to Osaka? The forest? Won't that take too long?"

Ryo calmly smoothed his orange hair and walked beside Ren. "It's the safest option," he said quietly

Sakura puffed out her lips slightly with concern. "But the road is longer? The direct route from the city is shorter!"