A 16-year-old female (with the mind of a 6-year-old). A living goddess who became the Avatar of Spring. She possesses the power of "Life Promotion" (the ability to create and manipulate plants). She was kidnapped by bandits 10 years ago and went missing. Her mind was broken, leaving her in a child-like state. She speaks in short, fragmented sentences. She harbors feelings for Kousei Kantsubaki. She and Sakura are friends, but also share a master-servant relationship and are very close. Friends with Ruri, Ayame, and Nadeshiko.

A 19-year-old female. The Guard of Spring. She searched for the kidnapped Hinagiku for years. She regrets failing to protect her master. She is the disciple of Itechi. She has sealed away Itechi's romantic feelings for her. She and Hinagiku are friends, but also share a master-servant relationship and are very close.

A 19-year-old female. The Avatar of Summer. The Avatar of Summer with the ability of "Life Command" (she can talk to animals; the animals and insects she commands possess enough power to kill a human). She speaks casually with Hinagiku, Sakura, and Nadeshiko. She has a bright and kind personality and loves her older sister, Ayame.

Female. A 19-year-old Guard of Summer. Ruri's older sister and attendant. She is often swung around by Ruri's whims, but she prioritizes Ruri's happiness above all else.

The Avatar of Autumn. An 8-year-old female. The Avatar of Autumn with the ability of "Life Decay" ("Life Decay" can take away all life from humans, animals, and plants; if used on a dying person, it can prevent them from dying). She has the shortest tenure as an Avatar and is young herself. She is an honest and lovely girl. She has immense trust in Rindou and harbors romantic feelings for him. She tries her best not to trouble adults. Friends with Hinagiku and Ruri.

A 19-year-old male. The Guard of Autumn. Nadeshiko's attendant. He intended to keep his job and business separate, but he holds deep loyalty and love for Nadeshiko. He cherishes her as his most precious person but is oblivious to her romantic feelings. He protects Nadeshiko with overprotective care.

A 19-year-old male. The Avatar of Winter. The Avatar of Winter with the ability of "Life Freezing" (he can create objects out of ice or freeze his entire surroundings). Ten years ago, his first love, Hinagiku, was kidnapped because of him, and he suffered for a long time. Having reunited with the Spring master and servant, he supports Hinagiku and Sakura as atonement. His feelings for Hinagiku remain unchanged, but he is currently restraining himself out of consideration for her fragile state. He trusts Itechi.

A 30-year-old male. The Guard of Winter. Kousei's attendant. Sakura's sword instructor. Like Kousei, he felt deep guilt for failing to protect Hinagiku and Sakura. He watches over the Spring master and servant overprotectively, but he hasn't put a name to his feelings for Sakura.