A hikikomori and NEET in the real world, Kyoko (22 old years), transmigrated into a character with big breasts in an MMO world. Her profession is monster tamer. Somehow managing to ‘capture’ a slime along the way, a human’s face suddenly… i, ikemen?! The slime who became the strongest. The cobra who joined in the middle. This is a story about loving two of such monsters.