I am looking for an Isekai manga which I read last month wherein the main character (MC) had been summoned and successfully accomplished his task after which he was sent back to his former world, wherein he returned with his powers. However, the kingdom re-summoned people from Earth and ended up with a group of students which included the MC. The MC retained his powers and left for a journey after the teacher identified him to be the previous Hero and, on his request, told the king that it was worthless to teach him and that he cannot learn anything due to his lack of potential.

I am looking for an Isekai manga which I read last month wherein the main character (MC) had been summoned and successfully accomplished his task after which he was sent back to his former world, wherein he returned with his powers. 

However, the kingdom re-summoned people from Earth and ended up with a group of students which included the MC. 

The MC retained his powers and left for a journey after the teacher identified him to be the previous Hero and, on his request, told the king that it was worthless to teach him and that he cannot learn anything due to his lack of potential.

I am looking for an Isekai Manga which I read last month wherein the MC had been summoned and successfully accomplished his task post which he was sent back to his former world wherein he returned with his powers. However the kingdom re summoned people from Earth and ended up with a group of students which included the MC. The MC retained his powers and left for a journey after the teacher identified him to be the previous Hero and on his request told the king that it was worthless to teach him and that he cannot learn anything due to his lack of potential.

I am looking for an Isekai manga which I read last month wherein the main character (MC) had been summoned and successfully accomplished his task after which he was sent back to his former world, wherein he returned with his powers. However, the kingdom re-summoned people from Earth and ended up with a group of students which included the MC. The MC retained his powers and left for a journey after the teacher identified him to be the previous Hero and, on his request, told the king that it was worthless to teach him and that he cannot learn anything due to his lack of potential.