In a society where succubi and humans coexist, the otaku and top-class student Hayato Yui is in love with his classmate, the succubus Emu Katou. However, he silently tells himself, "it isn't lust; I've fallen for her as a person." Meanwhile, the equally taciturn Emu, who actually has feelings for him, wants to grow closer too...!?

(Source: Kodansha, translated)