Ho Yeon-woo is a perfect man with appearance, ability, and atmosphere. But it's the worst for a romantic partner, They only pursue casual encounters and mercilessly kick serious opponents. There are many people who know that but are possessed He is called 'fox' instead of 'Yeonwoo', in fact… It's a real fox! The fox beast 'Hoin Tribe' It derives vitality from the human heart towards itself. The deeper and bigger the feeling, the better, For some reason, Yeon-woo is reluctant to have a deep heart, and when the other person becomes serious, he rather throws it away. Unable to absorb the quality of life force, Yeon-woo eventually falls ill and collapses. If this continues, he will die within one year. There is only one solution, find a person with a huge vessel in his heart. To fall in love deeply and gain that power. Yeomhwa, the leader of the Hoin tribe, injected divine power into Yeon-woo's eyes. You will be able to see the vessel of the heart that each person has. But after searching for it, I finally found it. The owner of a huge heart vessel is a man...? It is also a former judo athlete with open shoulders, A fixed person who is famous for his blunt and iron-clad work! Heterosexual? The other person can’t give it up? I don’t need everything. If you want to live, “Twist it with all your life!”