Those Years I Transmigrated Through Anime Worlds

It's a confusing novel. I've read Chapter 14 and still can't figure out what story this novel wants to tell. The protagonist, the angel Gaellu who borrows a corpse to bring back the soul, is acceptable, but I can't accept it. The protagonist has a series of magical operations, and there are boxes that can't be opened. This is tolerable. It's really awesome. The story is too bland, not funny, not heartwarming, but it's real in everyday life. I'm so bored, I feel like sleeping while reading it.

As far as I'm concerned, it looks a little weird, I can't understand it, or it's a bit inexplicable.