Doomsday in Diary

When the doomsday comes, he is the owner of the diary, with unpredictable abilities. All his teammates who went to the unknown island were buried in a sea of ​​corpses. How did the few remaining people escape the pursuit of mutants on the unknown island? What did the few people with special powers discover on the unknown island? Can he and his companion Yusha find their father? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.