Epotoransu! Mai(1994)

When messing around with her electronic notebook she got for her birthday, Mai accidentally types in Epotoransu. This phrase triggers a magicial function in the notebook, bringing forth a boy named Takuma. With Takuma's help, Mai decides she'll be able to win the heart of her true love, the class otaku named Nimura. If she could ever get up the courage to tell him without becoming too embarassed.