Shunsuke Aoba has just transferred to a new school and can’t wait to attend. Excitedly, he sprints to the school but, upon arrival, finds that no one is there. Unfortunately, Shunsuke didn’t know that his first day was a holiday, of all things. However, it seems that he is not the only one on campus. As he is about to eat his lunch, he meets a student named Natsumi. Shunsuke gives her some of his food, and the two strike up a conversation. Natsumi was born as a so-called SL girl, a particularly tall girl. She herself accepts her specialness but is rejected by many of her classmates. How will Shunsuke react to this? Will their initial friendship continue?
The anime will take place in Fukuoka, and will follow the love lives of four female protagonists as high school students, college students, and as working adults.
In the midst of Shouwa era Japan, greed runs rampant through the bustling cities and communities of the nation. King of Hell Enma Daiou summons an envoy into his office in the form of a small boy named Kurayami Santa. Through Enma's debriefing, Santa learns that the amount of greed and selfish behavior produced by humans will soon create an enormous wave of souls entering into Hell simultaneously, which would be catastrophic for Hell itself.
Santa is given one mission: do something about it. With neither guidelines nor rules, Santa is tasked to handle the situation as he sees fit. In the human world, a rampaging thunderstorm strikes a nearby cemetery with a bolt of lightning, and the envoy of Hell appears.
Teleported into the human world, Santa quickly realizes that humans are just as wicked as Enma had described. Without upsetting the balance between light and dark, Santa begins his quest to complete the mission from Hell and restore order to the human world.
In a village in the remote countryside, Beryl Gardinant meticulously runs a fencing dojo. One day, he's paid a visit by his former pupil Allusia, now grown into the kingdom knights' commander, and Beril decides to follow her to the royal capital to become a special instructor for the knights. As he's pulled into reunions with his accomplished and eager apprentices, what does fate have in store for Beryl?