Tomoki, accompanied by his angeloids Ikaros and Nymph, finds himself in a state of contentment until he starts experiencing strange dreams. Seeking answers, he enlists the help of his friends to delve into the mystery. Nymph creates a device allowing them to enter dreams, leading to a startling discovery within what should have been Tomoki's dream. Subsequently, a meteor descends near the iconic cherry blossom tree where Tomoki met Ikaros, unveiling a voluptuous blonde angeloid wielding an immense sword who is on a quest to locate Tomoki.