If that WAS supposed to be a boy, then it's an error, because the artist clearly doesn't understand what MGE is entirely about. The Liliraune has heterosexual sex with men just the same as the standard Alraune does, but with two women in the same flower. (post #1714273)
Transgendering and homosexuality (beyond bisexual women) are basically eradicated in the MGE world. The way MGE deals with homosexual men is to turn them into women, which is what the Alp is. (post #909704) These are the only transgenders in MGE thus far.
the alp is clear but the bones of man can become a female skeleton too.
If that WAS supposed to be a boy, then it's an error, because the artist clearly doesn't understand what MGE is entirely about.
Sorry, gotta agree with the others on this one. The source points out that this is a TFTG, a Transformation Transgender, work.
You are correct that the MGE page about the Liliraune mentions nothing about transgender-inducing abilities, but neither does it give a direct explanation of what would happen if a heterosexual couple were the first human pair to encounter it - before the Liliraune has assumed its two-female form. It suggests that, in the extremely rare case of the flower being born with only petals, it will take in two human women that are especially close and change them; but it also says that males, too, are drawn to their fragrance and that they will take them in when given the opportunity. Considering the Liliraune is itself a mutation of the Alraune, I can't see why it's not possible for a further mutation to produce transgender effects on captured males.
Call it an error if you wish, but since this is a commission by someone other than the artist for an alternate-universe work, I doubt anyone else will see it that way.
IIRC, Transgender Transformation doesn't exist, er, consistently in the MGE-Verse outside of the Alp or Skeleton (so far that we know of) and both of those transformation require Demonic Energy which pretty much only come from the Demon-Type Monster Girls.
According to their entries: the Alp requires starting as an Incubus and having the specific desire to become female or lusting after men, destroying their own Spirit Energy Production, and then absorbing even more Demonic Energy to transform. The Skeleton can be formed from the bones of a male because they're broken down and then made up entirely of Demonic Energy with a bone-theme.
I personally don't care if this comic is canonically correct to the MGE-Verse though.
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So, moving on, is the Suspected-Subject male or female?
Based on the context of the pictures, where the two characters are receiving slightly different methods of conversion, the Suspected-Subject is male.
I mean, really, the Clearly Female character becomes docile by Panel 4. The Suspected-Subject, however, continues to struggle until Panel 8 inserts a lily into their mouth and basically feeds them a copious amount of nectar.
It could be argued that's because one is suppose to represent the stamen and pistil, so the method of conversion therefore needs to be different... but seems to be really grasping at straws since the two bodies only correspond to the stamen and pistil and are functionally the same as far as the Monster Girl is concerned.
We are in agreement. The simplest explanation, outside of analyzing the work itself, is that the artist has stated at the source that the intention was TFTG, and that it was a commission for another person to be drawn this way (ie. non-canon).
A less-obvious possibility could be 47 XXY or Klinefelter Syndrome in the apparent male. Physically male with two X-chromosomes. IIRC Monster Girl transformation in-universe can heal most ailments, so the plant deactivated or removed the Y-chromosome with Demonic Energy (or Mamomo Mana, which Kenkou prefers). Just silly scientific conjecture.
the alp is clear but the bones of man can become a female skeleton too.
But KC has said that alps can become any type of monster given the right circumstances and alps can look very feminine So the male is an alp. Also this artists likes tg transformation from the looks of several other things hes done.