I Have the Only Space Ring in the World

I traveled through time, took a space ring with me, and became the only person in the world with a space ring. Can the space ring only store items? It's not that simple. In my hand, it can disarm me, gather energy, refine it, change it for another (literally), change clothes with one click, keep food fresh, help me reach the top, and even perform magic tricks to seduce girls. In short, there is no mercy for killing people, there is no mercy for scaring people to death, there are many ways to play. There is no way, who makes me the only person in the world who has a space ring and knows its function.