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It hadn't been too long since Natsuhisa Akira had come back from his long campaign in Edea. Technically, he had spent more time in that world more than he did on Earth so his decision to return had not been an easy one.
Not long after he returned however, the family who he looked forward to get back to had rejected his return and suspected him of being an impostor that eyed their assets since he was once known as the most talented eldest son. They even disrespected the person he wanted to introduce to his family as his wife.
Not long after that, the mana depletion condition that Lailah had been hiding was found out by him when she had fainted from exhaustion. This led him to move towards deep into the mountains and made the former hero take desperate actions to ensure his elven wife's survival.
Never did he expect that his actions would lead to meeting up with not only one of his predecessors, but also a young boy who unbelievably claimed to be his successor.