Nido Ikiru Bidaisei

The protagonist, Lee Jae-Ha, dreams of success as a designer, but is falsely accused of plagiarism and suffers a setback. If only he could start his life over again like in a novel... The moment he had this thought, things took a turn just like in a novel!? He suddenly found himself in a world 10 years in the past. It's the perfect time to start over. Moreover, he has the experience he gained as a working adult in his previous life. Now he can make a name for himself at university, get a job easily, and clear his name from his previous life! He will never make the same mistake again!

(Source: Piccoma, translated)