Return to Answer

This is Isekai Shoukan wa Nidome Desu (One translation I've found is "It’s my Second Time Being Summoned to the Other World")

When his entire class gets summoned to Destinia Kingdom, Suzaki Setsu is oddly not taken by surprise Unbeknownst to everyone else, Setsu had already saved the exact same kingdom in a previous life! As a returned ex-hero, he sets off to prevent yet another impending war but not as a newbie anymore.

Found by searching for isekai manga summoned back, which brought me to this Reddit thread.

It's apparently based off of a web-novel.

This is Isekai Shoukan wa Nidome Desu (One translation I've found is "It’s my Second Time Being Summoned to the Other World")

When his entire class gets summoned to Destinia Kingdom, Suzaki Setsu is oddly not taken by surprise Unbeknownst to everyone else, Setsu had already saved the exact same kingdom in a previous life! As a returned ex-hero, he sets off to prevent yet another impending war but not as a newbie anymore.

Found by searching for isekai manga summoned back, which brought me to this Reddit thread.

It's apparently based off of a web-novel.

This is Isekai Shoukan wa Nidome Desu (One translation I've found is "It’s my Second Time Being Summoned to the Other World")

When his entire class gets summoned to Destinia Kingdom, Suzaki Setsu is oddly not taken by surprise Unbeknownst to everyone else, Setsu had already saved the exact same kingdom in a previous life! As a returned ex-hero, he sets off to prevent yet another impending war but not as a newbie anymore.

Found by searching for isekai manga summoned back, which brought me to this Reddit thread.

It's apparently based off of a web-novel (also in Japanese) available here.

This is Isekai Shoukan wa Nidome Desu (One translation I've found is "It’s my Second Time Being Summoned to the Other World")

When his entire class gets summoned to Destinia Kingdom, Suzaki Setsu is oddly not taken by surprise Unbeknownst to everyone else, Setsu had already saved the exact same kingdom in a previous life! As a returned ex-hero, he sets off to prevent yet another impending war but not as a newbie anymore.

Found by searching for isekai manga summoned back, which brought me to this Reddit thread.

It's apparently based off of a web-novel.

This is Isekai Shoukan wa Nidome Desu

When his entire class gets summoned to Destinia Kingdom, Suzaki Setsu is oddly not taken by surprise Unbeknownst to everyone else, Setsu had already saved the exact same kingdom in a previous life! As a returned ex-hero, he sets off to prevent yet another impending war but not as a newbie anymore.

Found by searching for isekai manga summoned back, which brought me to this Reddit thread.

This is Isekai Shoukan wa Nidome Desu (One translation I've found is "It’s my Second Time Being Summoned to the Other World")

When his entire class gets summoned to Destinia Kingdom, Suzaki Setsu is oddly not taken by surprise Unbeknownst to everyone else, Setsu had already saved the exact same kingdom in a previous life! As a returned ex-hero, he sets off to prevent yet another impending war but not as a newbie anymore.

Found by searching for isekai manga summoned back, which brought me to this Reddit thread.

It's apparently based off of a web-novel (also in Japanese) available here.