Otherworld Summoner
Isekai Summoner, Shinwa no Kaibutsu-tachi to Gendai de Musou Suru: Ore to Keiyaku Shita Saikyou Shoukanjuu-tachi no Ai ga Omosugiru
異世界サモナー、神話の怪物達と現代で無双する ～俺と契約した最強召喚獣たちの愛が重すぎる～
Isekai Summoner, Shinwa no Kaibutsu-tachi to Gendai de Musou Suru: Ore to Keiyaku Shita Saikyou Shoukanjuu-tachi no Ai ga Omosugiru
異世界サモナー、神話の怪物達と現代で無双する ～俺と契約した最強召喚獣たちの愛が重すぎる～
Spin-off
An Otherworldly Summoner Unrivaled in the Modern World Against Mythical Monsters ~The Love of the Strongest Summoned Beasts Who Made a Contract With Me Is Too Strong~
Isekai Summoner, Shinwa no Kaibutsu-tachi to Gendai de Musou Suru: Uragirareta Moto Eiyuu wa, Aiomome na Nakama to Heiwa ni Kurashitai· 異世界サモナー、神話の怪物達と現代で無双する ～裏切られた元英雄は、愛重めな仲間と平和に暮らしたい～
manga
63
80
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Reima, a Summoner, was transported to another world where he defeated the Demon King and became a hero of the people. But his power, great enough to even slay the Demon King, came to be feared as a threat to humanity which resulted in him being executed. Bidding a silent farewell in his heart to the summoned beasts who fought at his side, he thought his life had ended... yet he awoke in a hospital in a parallel Japan? It's just like his original world, but now there's dungeons to be explored and monsters on the loose. Strangest of all, his summoned beasts are still with him! "I'm relieved that I get to see my summoned beasts again but it seems their love is heavier than before...?"