Arafoo Kenja no Isekai Seikatsu Nikki
Ch30 Mc was a programmer whi was fired and so he lived by himself and playing game in his room. He lives alone. He and his party then managed to defeat the boss monster, only to suddenly isekai to another world just like the game he played. The goddess said that the boss he and his friends defeated was actually a demon and it's escaped, so in attempt to save mc , the goddess transferred him here, but his friends were too late and killed by the demon. Now mc alone with a max level magic, and swordman skills, with very high level. He met a carriage that encounter bandits, and saved them. Apparently they were the previous lord, and mc lives with them as they were feeling indebted . Mc also helped the daughter to practice magic with tempered the magic circle a little bit made it more practical, and so he got an apprentice.
Spare Me, Great Lord!