Hara of Thunder

Kwon Ha-Ra is just an ordinary high schooler until she is summoned to the world of Tatara, where she meets her favorite book character, Tori Veriharts. Although star-struck by Tori, she desperately wants to return home to her beloved mother. The only way back, she is told, is to become the successor of the powerful lightning stone and defeat the evil wizard, Parus. With no other choice, Ha-Ra and Tori set out on an electrifying adventure to save Tatara and return home!

(Source: Tapas, edited)

Note: Includes one extra chapter.