Belle trouvaille

Young orphaned adventurer tries summoning the devil to help his career as his own skills are lacking. The devil comes in form of a beauty who offers to grant him one wish. He’s so enamored with her appearance that he asks her the first thought in his mind, to be his wife. She blushingly agrees to his surprising demand and they go on to future adventures together.

Callum has seen strange things all his life - monsters, beasts, and mages secretly living among people. But even after awakening his portal magic, Callum has no desire to be any part of it. The Guild of Arcane Regulation demands fealty, education, and service of every new mage. To hell with that. If they want Callum, they'll have to catch him first.

During and school trip, the bus of the 2nd year class 3 with 32 people was summoned to another world... we were gonna be sold to become pilots of robot like magical weapons, but it looks like the values of the selling prices were decided by the values of some unknown parameter called Ludia (ルーディア)... While some classmates got high prices with parameters of 10,000 or 20,000, my parameters were actually 2... really unbelievable... but actually my parameter's value made the measuring machine's needle perform a full turn but no one noticed it... Though I had the strongest parameters... nobody bought me and was actually exchanged as an slave for two fruits.

Amidst the annual summoning of over 1,000 heroes, Saburou's summoning bonus is a mere +1 to luck. Dubbed the most disappointing hero in a decade, he begins a laid-back life in another world with a doll princess as his companion. What adventures await him in this new life?