I plan to write it as a series, which may not necessarily be about rebirth or time travel, but may also be about a change of appearance; it may not necessarily be written around the female protagonist, but it may also be about the male protagonist. I hope this series can allow everyone to see characters with different styles. This article is the first part of my "Ni Huan" series. I haven't decided on a name yet, so I will use "Ni Huan no Ami" for the time being.