で in 完全変態で、生まれ変わったように I'm looking for some help in understanding the sentence below. To provide a bit more context one of the characters made a ”” and then the following exchange occurred: > Girl 1”” > > Girl 2”” > > Girl 3 > > Girl 4 > > Girl 1 **** I get the idea behind the exchange where is used to mean something like Complete Pervert(referring to him being a pervert) / Complete Metamorphosis(as in a type of metamorphosis in which the larva does not resemble the adult). However what I've gotten myself confused on is how to properly parse the last sentence. I think I've just confused myself but anyway, is this just simply and not the that is used with definitions like , ….

Girl 1: What does “hentai” mean?

Girl 2: It’s when a pupa turns into a butterfly.

Girl 3: Technically that’s “total hentai”.

Girl 4: Huh, so senpai goes through total hentai.

Girl 1: I see. Shun-kun is a total hentai, and that’s why he tries his best as though he was reborn.

Girl 1 makes the connection that he tries as hard as he does because he’s a total hentai. I think this is a usage of and it somewhat expresses a cause/reason. It’s a little different from , where is the for , and would _not_ mean because is not being equated with anything. In , there is an equation of two nouns, and hence this can be interpreted as the form of . One of the usages of the form is to express a cause, e.g. in “” (There’s too many people -> I can’t find my friend.)