Hinoharu Kota, feeling neglected by his often absent wife, daydreams of a serene ski getaway. In his reverie, he is unexpectedly thrust into a fantastical realm where he must rescue a female knight from a monstrous spider. To his astonishment, Kota realizes he has been summoned as a mystical being called a summon beast, capable of traversing different dimensions from Earth. Embracing this newfound role, Kota embarks on missions that grant him magical prowess, a stark contrast to his mundane existence back home. This extraordinary opportunity may just be the turning point in his unremarkable life.