Mamono wo Pet-ka suru Nouryoku ga Mezamemashita: Uchi no Ko, Kawaii keredo Saikyou desu!?

Tohru, a tired office worker, finds herself in another world. A huge dragon and a handsome man appear at the destination. When Tohru holds up her hand, the dragon suddenly becomes smaller and more adorable! The handsome man, Knight Commander Zailard, welcomes her as the 'Saint of Salvation,' but another saint has already appeared.