Isekai de Kojiin wo Hiraita kedo, Naze ka Darehitori Sudatou to Shinai Ken

At a high school rigidly divided by social castes, Masatsugu Naomi occupies the very bottom rung. When his entire class is caught up in a summoning to another world, any hope of a new beginning is swiftly crushed—the king dismisses him on the spot, declaring his skills far too clumsy to be of any use. Deemed unnecessary, Naomi is forced to take charge of an orphanage, a burden so undesirable that not one of his classmates is willing to accept it. What no one anticipates, however, is that Naomi's supposedly pathetic abilities are in fact extraordinary cheat skills—powers that draw the girls to him and leave them clinging to his side. The castaway who was thrown away as worthless suddenly finds himself the one person a group of girls depends on entirely. Determined to protect those who have come to rely on him, Naomi devotes himself to keeping the orphanage running. Yet safeguarding his newfound charges means standing firm against the powerful figures, the authorities, and his former classmates who close in around him.