A shy teen who wrote some letters between a self-insert character named "Yoshi" and her imaginary senpai out of a desire for a relationship. She ran out of places to hide the writings in her house, but as she was too attached to destroy them, she instead sealed them in envelopes and hid them around Laoluzia.
However, her letters were soon discovered by the public and posters in search of "Yoshi and/or her 'Senpai'" were everywhere. A talent agency had been posting the search fliers... then another agency appeared doing the same. Then another, and another, and another. Various agencies from all over Aster discovered incredible lyrical potention in her letters, and it was immensely better than most had ever seen in their lives. Now all the big names in the industry not only want her to write more with one of them, but to reveal her true identity!