Read Kikanshita Yuusha No Gojitsudan manga
In a fraction of a second, an university student, Kashiwagi Yuuya was summoned to another world and came back. Time didn’t pass in Japan, but Yuuya has completed the quest as a hero in another world and successfully returned. But to his surprise, he still retains his powers as a hero. Thus started the unordinary life of a hero in present day.
The popular Isekai but not Isekai web novel is now in manga form!
WN Raw: https://ncode.syosetu.com/n7294dm/