Hikaru, who lost her life at the young age of 20, is reincarnated into another world by the grace of a goddess—but due to a mishap, she becomes moss instead of a human! “If I don’t do something, I’ll die immediately.” Terrified at starting her new life as the weakest species with the weakest stats, Hikaru tries to survive by using her reincarnation perk: the ability to acquire additional skills. As she trains by defeating small creatures nearby with her chosen skills and newly learned magic, she discovers that moss can actually evolve into another species…!?